Question

1. How many triangles exist in the adjoining figure?​

Answer 1

Answer:

Explanation : Indicate the parts in the triangle by

letters a, b, c, d, e as shown.

Triangles indicated by single letters are a, b, c, d, e=5

by two letters are a +b, b+d, d +c, c + a=4

by three letters is c+d+e=1

by four letters = 0

by five letters is a +b+c+d+e=1

Total 5 +4+1+0+1=11.

Answer 2

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11

hope it helps u