How many edges and vertices are there for an octahedron which is a polyhedron with eight congruent triangular faces?

How many edges and vertices are there for an octahedron which is a polyhedron with eight congruent triangular faces?
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Description : In STL files Euler’s rule for solids can be written as a.No. of faces †No. of edges + No. of vertices = 3 x No. of bodies b.No. of faces †No. of edges + No. of vertices = No. of bodies c.No. of ... = 2 x No. of bodies d.No. of faces †No. of edges + No. of vertices = 4 x No. of bodies

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Last Answer : To recall, a circle is a collection of points whose every point is equidistant from its centre. So, two circles can be congruent only when the distance of every point of both the circles are equal from the centre ... ) So, by SSS congruency, ΔAOB ΔCOD ∴ By CPCT we have, AOB = COD. (Hence proved).

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Prove that a diagonal of a parallelogram divide it into two congruent triangles. -Maths 9th

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Last Answer : No, because in the congruent rule, the two sides and the included angle of one triangle are equal to the two sides and the included angle of the other triangle i.e., SAS rule.

If arcs AXB and CYD of a circle are congruent, find the ratio of AB and CD. -Maths 9th

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Prove that if in two triangles,two angles and the included side of one triangle are equal to two angles and the included side of the other triangle,then two triangles are congruent. -Maths 9th

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Prove that the diagonal divides a parallelogram into two congruent triangles. -Maths 9th

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Two congruent circles intersect each other at point A and B.Through A any line segment PAQ is drawn so that P,Q lie on the two circles.Prove that BP = BQ. -Maths 9th

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There are two congruent triangles each with area 198 cm^2. Triangle DEF is placed over triangle ABC in such a way that the centroid of -Maths 9th

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If two angles are right,then they are congruent.ConverseInverseContrapositive?

Description : If two angles are right,then they are congruent.ConverseInverseContrapositive?

Last Answer : %

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