Question

The perimeter of an equilateral triangle is 120mm.
State the length of one of its sides.

Answer 1

40mm

Explanation:

Perimeter of an equilateral=3a

120=3a

a=120/3

a=40mm

Answer 2

`40 \:mm`

Explanation:

An equilateral triangle has 3 equal sides.

`(120)/(3) =40`