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Find the number of triangles in the given figure.

...
Find the number of triangles in the given figure.

Find the number of triangles in the given figure.

A.

12

B.

13

C.

14

D.

15

Correct answer is D

The figure may be labelled as shown.

The simplest triangles are ABF, BIC, CIH, GIH, FGE and AFE i.e. 6 in number.

The triangles composed of two components each are ABE, AGE, BHF, BCH, CGH and BIE i.e. 6 in number.

The triangles composed of three components each are ABH, BCE and CDE i.e. 3 in number.

Hence, the total number of triangles in the figure = 6 + 6 + 3 = 15.