Question

how many matchsticks or required to make 15 triangles​

Answer 1

Answer:

hey bro 3 matchsticks are used for making 1 triangle so 15×3= 45

so 45 matchsticks are required to make 15 triangles

Answer 2

Answer:

sides of triangle are 3 and no. of traingle is 15.

so , sides of triangle × no. of triangle = 15 × 3

=45

total no. of matchstick it used to make 15 triangle are 45.