Q. 10

The number of triangles in Fig. 2.10 is

A. 10

B. 12

C. 13

D. 14

Answer :

1 is the bigger equilateral triangle, then there are 4 other smaller equilateral triangle and then the altitude makes 2 new big right angle triangles and 2 smaller and 1 large triangle on each side.

total 13 triangles

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