Description : The hypotenuse of an isosceles right-angled triangle is q. If we describe equilateral triangles (outwards) on all its three sides, -Maths 9th
Last Answer : (b) \(rac{q^2}{4}\) (2√3 + 1).AC = q, ∠ABC = 90º ⇒ q = \(\sqrt{AB^2+BC^2}\)⇒ q = \(\sqrt{2x^2}\)⇒ q2 = 2x2 ⇒ \(x\) = \(rac{q}{\sqrt2}\)∴ Area of the re-entrant hexagon = Sum of areas of (ΔABC + ΔADC ... (rac{\sqrt3}{4}\)q2 + \(rac{\sqrt3}{8}\)q2 + \(rac{\sqrt3q^2}{8}\) = \(rac{q^2}{4}\) (2√3 + 1).
Description : O is a point in the interior of a square ABCD such that OAB is an equilateral triangle.Show that △OCD is an isosceles triangle. -Maths 9th
Last Answer : Solution :-
Description : In the diagram AB and AC are the equal sides of an isosceles triangle ABC, in which is inscribed equilateral triangle DEF. -Maths 9th
Last Answer : answer:
Description : what- A triangle is formed by the intersection of the lines y = 0, y = -3x + 3, and y = 3x + 3.Is the triangle equilateral, isosceles, or scalene Graph the lines on grid paper to find the vertices of the triangle?
Last Answer : isosceles
Description : what- A triangle is formed by the intersection of the lines y = 2x + 4, y = -x – 2, and x = 1.Is the triangle equilateral, isosceles, or scalene Graph the lines on grid paper to find the vertices of the triangle?
Last Answer : scalene
Description : Name the type of triangle formed. (a) Right angled (b) Equilateral (c) Isosceles (d) Scalene
Last Answer : (d) Scalene
Description : The points (-4, 0), (4, 0), (0, 3) are the vertices of a: (а) Right triangle (b) Isosceles triangle (c) Equilateral triangle (d) Scalene triangle
Last Answer : (b) Isosceles triangle
Description : The type of arch generally constructed over a wooden lintel or over a flat arch for the purpose of carrying the load of the wall above is (A) Segmental arch (B) Pointed arch (C) Relieving arch (D) Flat arch
Last Answer : Option C
Description : Why is the pointed arch in gothic architecture structurally more stable than the rounded arch used earlier?
Last Answer : its direct weight downward into the ground.....
Description : A three hinged arch is generally hinged at its supports and (A) At one quarter span (B) At the crown (C) Anywhere in the rib (D) None of these
Last Answer : (C) Anywhere in the rib
Description : In a three hinged arch, the third hinge is generally kept at (A) Crown of the arch (B) Midpoint of the crown and left support hinge (C) Midpoint of the crown and right support hinge (D) None of these
Last Answer : (A) Crown of the arch
Description : The C.G. of a plane lamina will not be at its geometrical centre in the case of a (A) Right angled triangle (B) Equilateral triangle (C) Square (D) Circle
Last Answer : (A) Right angled triangle
Description : If the length of a wall on either side of a lintel opening is at least half of its effective span L, the load W carried by the lintel is equivalent to the weight of brickwork contained in an equilateral triangle, producing a maximum bending moment (A) WL/2 (B) WL/4 (C) WL/6 (D) WL/8
Last Answer : Answer: Option C
Description : A kite in the shape of a square with a diagonal 32 cm and an isosceles triangle of base 8 cm and sides 6 cm each is to be made of three different shades as shown in figure. -Maths 9th
Last Answer : Each shade of paper is divided into 3 triangles i.e., I, II, III 8 cm For triangle I: ABCD is a square [Given] ∵ Diagonals of a square are equal and bisect each other. ∴ AC = BD = 32 cm Height of AABD ... are: Area of shade I = 256 cm2 Area of shade II = 256 cm2 and area of shade III = 17.92 cm2
Description : Does this look like the Lyme disease bull's eye rash?
Last Answer : It looks like a bruise in the photos. From what I remember, the bull’s eye is usually a distinctive bull’s eye pattern… but a doctor could tell you for sure, of course.
Description : Why is a bull's eye called a bull's eye?
Last Answer : answer:the same reason a cow’s eye is called a cows eye. LOL sorry i don’t know.
Description : (i) The Air Force targeted Tiger Hill on 2-3 July and hit the bull’s eye several times. (Use ‘Not only But also’ and rewrite)
Last Answer : (i) The Air Force targeted Tiger Hill on 2-3 July and hit the bull's eye several times. ... not be able to dislodge 18 Grenadiers. (Remove Negative)
Description : An early symptom of ________ is a spreading bulls-eye rash at the site of a tick bite. a. Tularemia b. Lyme disease c. Yersinia pestis d. Q fever
Last Answer : b. Lyme disease
Description : From a point in the interior of an equilateral triangle, perpendiculars are drawn on the three sides. -Maths 9th
Last Answer : Let each side of ㎝ equilateral triangle ABC be ′a′㎝ Now, ar△OAB=21 AB OP=21 a 14=7a㎠→1 ar△OBC= BC OQ =21 a 10=5a㎠→2 ar△OAC=21 AC OR=21 a 6=3a㎠→3 ∴ar△ABC=1+2+3=7a+5a+3a=15a㎠ Also area of equilateral ... ABC=43 a2 Now, 43 a2=15a⇒a=3 15 4 3 3 =3603 =203 ㎝ Now, ar△ABC=43 (203 )2=3003 ㎠
Last Answer : Area of triangle =
Description : An equilateral triangle is cut from its three vertices to form a regular hexagon. What is the percentage of area wasted? -Maths 9th
Last Answer : (c) 33.33%When an equilateral triangle is cut from its three vertices to form a regular hexagon then out of the 9 equilateral triangles that form ΔABC, three triangle, ΔADE, ΔFCG,ΔIHB are cut off and 6 remain in the ... to get the hexagon.∴ Area wasted = \(\bigg(rac{1}{3} imes100\bigg)\)% = 33.33%
Description : Three of the six vertices of a regular hexagon are chosen at random. The probability that the triangle with these vertices is equilateral equals : -Maths 9th
Last Answer : (c) \(rac{1}{10}\)Let S be the sample space.Then n(S) = Number of triangles formed by selecting any three vertices of 6 vertices of a regular hexagon= 6C3 = \(rac{6 imes5 imes4}{3 imes2}\) = 20.Let A : Event that the ... Required probability = \(rac{n(A)}{n(S)}\) = \(rac{2}{20}\) = \(rac{1}{10}\).
Description : A teenager has swelling involving his upper lip, the corner of his nose and a region under his left eye. The swollen area is soft, fluctuant and pointed on the labial plate under his ... and test vitality of his teeth E. Write prescription for antibiotics and delay treatment until swelling is
Last Answer : A. Refer him to physician IV abs riesgo de thrombosis de seno cavernoso
Description : ABC is an isosceles triangle with AB = AC and BD, CE are its two medians. Show that BD = CE. -Maths 9th
Last Answer : Given ΔABC is an isosceles triangle in which AB = AC and BD, CE are its two medians. To show BD = CE.
Description : what- The length of the shortest side of the isosceles triangle is 6 inches.Find the length of the two congruent sides?
Last Answer : 10 in
Description : What is the measure of each angle of an isosceles triangle if the measure of the third angle is 7 times the measure of either of the two base angles?
Last Answer : The angles are 140 degrees, 20 degrees and 20 degrees that addup to 180 degrees
Description : How would I make an isosceles triangle according to Euclid?
Last Answer : answer:More information needed But there is a fairly easy way with a compass and straight edge. 1) Draw a line AB 2) Use a compass and put one end on A and one end on B and trace out an arc (with A at the ... 3) Connect A to any point on the arc (call it C) making a line AC. 4) Connect B to C.
Description : ABC is an isosceles triangle in which AB=AC.AD bisects exterior angles PAC and CD parallel AB.Prove that-i)angle DAC=angle BAC ii)∆BCD is a parallelogram -Maths 9th
Last Answer : AB =AC(given) Angle ABC =angle ACB (angle opposite to equal sides) Angle PAC=Angle ABC +angle ACB (Exterior angle property) Angle PAC =2 angle ACB - - - - - - (1) AD BISECTS ANGLE PAC. ANGLE ... AND AC IS TRANSVERSAL BC||AD BA||CD (GIVEN ) THEREFORE ABCD IS A PARALLEGRAM. HENCE PROVED........
Description : Bisectors of the angles B and C of an isosceles triangle with AB = AC intersect each other at O. -Maths 9th
Last Answer : Solution of this question
Description : A square is inscribed in an isosceles right triangle, so that the square and the triangle have one angle common. -Maths 9th
Last Answer : Given In isosceles triangle ABC, a square ΔDEF is inscribed. To prove CE = BE Proof In an isosceles ΔABC, ∠A = 90° and AB=AC …(i) Since, ΔDEF is a square. AD = AF [all sides of square are equal] … (ii) On subtracting Eq. (ii) from Eq. (i), we get AB – AD = AC- AF BD = CF ….(iii)
Description : If a line is drawn parallel to the base of an isosceles triangle to intersect its equal sides, prove that the quadrilateral, so formed is cyclic. -Maths 9th
Last Answer : Given ΔABC is an isosceles triangle such that AB = AC and also DE || SC. To prove Quadrilateral BCDE is a cyclic quadrilateral. Construction Draw a circle passes through the points B, C, D and E.
Description : An isosceles right triangle has area 8 cm2. The length of its hypotenuse is -Maths 9th
Last Answer : (a) Given, area of an isosceles right triangle = 8 cm2 Area of an isosceles triangle = 1/2 (Base x Height) ⇒ 8 = 1/2 (Base x Base) [∴ base = height, as triangle is an ... √32 cm [taking positive square root because length is always positive] Hence, the length of its hypotenuse is √32 cm.
Description : The area of an isosceles triangle having base 2 cm and the length of one of the equal sides 4 cm, is -Maths 9th
Last Answer : s= 2 4+4+2 =5 Area of the triangle Δ= s(s−a)(s−b)(s−c) = 5(5−4)(5−4)(5−2) = 15 cm 2
Description : The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to its base is 3 : 2. -Maths 9th
Last Answer : Area of the triangle =
Last Answer : This answer was deleted by our moderators...
Description : ABC is an isosceles triangle in which altitude BE and CF are drawn to equal sides AC and AB respectively (Fig. 7.15). Show that these altitudes are equal. -Maths 9th
Last Answer : In △ABE and △ACF, we have ∠BEA=∠CFA (Each 90 0 ) ∠A=∠A (Common angle) AB=AC (Given) ∴△ABE≅△ACF (By SAS congruence criteria) ∴BF=CF [C.P.C.T]
Description : If the bisector of an angle of a triangle bisects the opposite side, prove that the triangle is isosceles. -Maths 9th
Description : Find the area of an isosceles triangle having base 2 cm and the length of one of the equal sides 4 cm. -Maths 9th
Description : Find the area of an isosceles triangle having base x cm and equal side y cm. -Maths 9th
Last Answer : If h is the height of the triangle, then h 2 =y 2 − 4 x 2 ⇒h= 4 4y 2 −x 2 cm ∴Area= 2 1 ×base×h = 2 x 4 4y 2 −x 2 cm 2
Description : Find the area of an isosceles triangle, whose equal sides are of length 15 cm each and third side is 12 cm. -Maths 9th
Last Answer : We have, Three sides13cm,13cm and 20cm. By using Heron's formula We need to get the semi-perimeter s= 2 a+b+c = 2 13+13+20 = 2 46 =23 Now, put the heron's formula, s= s(s−a)(s−b)(s−c) = 23(23−13)(23−13)(23−20) = 23×10×10×3 =10 23×3 =83.07cm 2
Description : An isosceles right triangle has area 8 cm2 . Find the length of its hypotenuse. -Maths 9th
Last Answer : Area = 1/2a2 ⇒ 1/2a2 = 8 ⇒ a2 = 16 cm ⇒ a = 4 cm Hypotenuse = √2a = √2.4 = 4√2 cm.
Description : The perimeter of an isosceles triangle is 32 cm. -Maths 9th
Last Answer : Let each of the equal side of isosceles triangle = 3x cm and base of isosceles triangle = 2x cm ∴ Perimeter = 3x + 3x + 2x 32 = 8x ⇒ x = 4 ∴ Sides are 3 x 4,3 x 4, 2 x 4 i.e., 12 cm, 12 cm, 8 cm Now, ... c)) = under root(√16(16 - 12)(16 - 12)(16 - 8)) = under root (√16 x 4 x 4 x 8) = 32√2 cm2
Description : The perimeter of an isosceles triangle is 15 cm -Maths 9th
Last Answer : Yes, 2b + a = 15 ⇒ 25 + 7 = 15 ⇒ b = 14 ∴ Area of isosceles triangle = 7/4 root under( √4b2 - a2) = 7/4 root under( √4 x 42 - 72) = 7/4 root under( √64 - 49) = 7/4. √15 cm2 Curiosity, knowledge, truthfulness.