What is the diameter of a circle if its radius is r ?

What is the diameter of a circle if its radius is r ?
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Answer :

If the radius of a circle is r then the diameter is 2r .
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Related questions

What is the center and radius of a circle ?

Description : What is the center and radius of a circle ?

Last Answer : The fixed point is called the center of the circle. The distance of any point of the circle from the center of the circle is called the radius of that circle.

What is the chord and diameter of a circle ?

Description : What is the chord and diameter of a circle ?

Last Answer : The chord of any two points joining a circle is the chord of the circle. And the center of the circle is the diameter of the oyster circle.

If r is the radius of a circle and d is its diameter is an equivalent formula for the circumference C 2r?

Description : If r is the radius of a circle and d is its diameter is an equivalent formula for the circumference C 2r?

Last Answer : Circumference of a circle: 2*pi*radius or diameter*pi

If r is the radius of a circle and d is its diameter is an equivalent formula for the circumference C 2r?

Description : If r is the radius of a circle and d is its diameter is an equivalent formula for the circumference C 2r?

Last Answer : Circumference of a circle: 2*pi*radius or diameter*pi

The moment of inertia of a semi-circle of radius r with respect to a centroidal axis parallel to the diameter is a.0.33 r2 b.0.11 r2 c.0.055 r2 d.0.05 r2 e.0.22 r2

Description : The moment of inertia of a semi-circle of radius r with respect to a centroidal axis parallel to the diameter is a.0.33 r2 b.0.11 r2 c.0.055 r2 d.0.05 r2 e.0.22 r2

Last Answer : b. 0.11 r2

The given figure shows a circle with centre O in which a diameter AB bisects the chord PQ at the point R. If PR = RQ = 8 cm and RB = 4 cm, then find the radius of the circle. -Maths 9th

Description : The given figure shows a circle with centre O in which a diameter AB bisects the chord PQ at the point R. If PR = RQ = 8 cm and RB = 4 cm, then find the radius of the circle. -Maths 9th

Last Answer : Let r be the radius, then OQ = OB = r and OR = (r - 4) ∴ OQ2 = OR2 + RO2 ⇒ r2 = 64 + (r-4)2 ⇒ r2 = 64 + r2 + 16 - 8r ⇒ 8r = 80 ⇒ r = 10 cm

The given figure shows a circle with centre O in which a diameter AB bisects the chord PQ at the point R. If PR = RQ = 8 cm and RB = 4 cm, then find the radius of the circle. -Maths 9th

Description : The given figure shows a circle with centre O in which a diameter AB bisects the chord PQ at the point R. If PR = RQ = 8 cm and RB = 4 cm, then find the radius of the circle. -Maths 9th

Last Answer : Let r be the radius, then OQ = OB = r and OR = (r - 4) ∴ OQ2 = OR2 + RO2 ⇒ r2 = 64 + (r-4)2 ⇒ r2 = 64 + r2 + 16 - 8r ⇒ 8r = 80 ⇒ r = 10 cm

What is the radius ?

Description : What is the radius ?

Last Answer : The distance of a point on the circle from the center of the circle is called the radius of that circle.

How many tangents can be drawn at any point of a circle ?

Description : How many tangents can be drawn at any point of a circle ?

Last Answer : A tangent can be drawn at any point in a circle.

The overlapping angle of a circle ?

Description : The overlapping angle of a circle ?

Last Answer : The overlapping angle of the overlap of a circle.

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Description : What is the maximum number of intersections of a circle and a straight line in a plane ?

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Description : What is the intersection and tangent of a circle ?

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What is the angle of the circle or the angle inscribed in the circle ?

Description : What is the angle of the circle or the angle inscribed in the circle ?

Last Answer : If the vertex of an angle is a point in a circle and there is a point in a circle in addition to the vertex on each side of a circle, then the angle is called a circle angle or an angle inscribed in the circle.

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Description : Which of the following is a subtext of any circle ?

Last Answer : Any obtuse angle inscribed in the subtraction of any circle.

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Description : What is a circle ?

Last Answer : : If the vertices of a bounded field within a circle are situated on the circumference of that circle, then those points are called isosceles.

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Description : What is an inner circle ?

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Description : What is the angle of the circle ?

Last Answer : An angle is called a circular angle if the vertex of an angle is a point in a circle and there is a point in the circle in addition to the vertex on each side of the angle.

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Description : What is a circle ?

Last Answer : A circle is a point of transmission which always maintains equal distances from a given point on the same plane.

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Description : What is an equal circle ?

Last Answer : A circle is a circular line formed when drawing a line with any amount of radius centered on a particular point .

What is the formula for determining the circumference of a circle ?

Last Answer : circle circumference = 2 pi r . Pi = 3.1416 .

Who divides a circle at 360 degree angle ?

Last Answer : The Assyrians divide the circle into 360 degree angles

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Description : If the diameter of the circle is 30 mm then what is the radius of the circle?

Last Answer : The radius if the circle is half of its diameter and so 30/2 =15 mm

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What is the rule of divisibility of ?

Description : What is the rule of divisibility of ?

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What is the rule of divisibility of ?

Description : What is the rule of divisibility of ?

Last Answer : It is divisible by 2 and 3 .

What is the rule of divisibility of ?

Description : What is the rule of divisibility of ?

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What is the rule of divisibility of 5 ?

Description : What is the rule of divisibility of 5 ?

Last Answer : If the single digit is 5 or 0 then the number is divisible by 5.

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Description : What is the divisibility rule of 4 ?

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What is the rule of divisibility of 3 ?

Description : What is the rule of divisibility of 3 ?

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What is the rule of divisibility of 2 ?

Description : What is the rule of divisibility of 2 ?

Last Answer : All numbers ending in a single or even spatial number 0 , 2 , 4 , 6 , 7 or even number are always divisible by 2.

What is the divisibility rule of 1 ?

Description : What is the divisibility rule of 1 ?

Last Answer : There is no rule for this. All numbers are divisible by 1.