Question

find the perimeter when 94 triangles are put together in the pattern shown below. assume that all triangle sides are 1 cm long. the perimeter is cm.

Explanation:

Step1: Observe the pattern

For 1 triangle, perimeter = 3 cm. For 2 triangles, perimeter = 4 cm. For 3 triangles, perimeter = 5 cm. We can find a formula for the perimeter $P$ of $n$ triangles. The relationship is $P=n + 2$.

Step2: Substitute $n = 94$

Substitute $n=94$ into the formula $P=n + 2$. So $P=94+2$.

Answer:

96