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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

If a Polyhedron Has 10 Vertices and 7 Faces, Find the Number of Edges in It. - Mathematics

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प्रश्न

If a polyhedron has 10 vertices and 7 faces, find the number of edges in it.

योग

उत्तर

Vertices = 10
Faces = 7
Using Eulers formula,
F + V – E = 2
7 + 10 – E = 2
-E = -15
E = 15

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अध्याय 19: Representing 3-D in 2-D - Exercise 19 [पृष्ठ २२०]

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सेलिना Concise Mathematics [English] Class 8 ICSE
अध्याय 19 Representing 3-D in 2-D
Exercise 19 | Q 2 | पृष्ठ २२०
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