Question

An equaliteral traingle with permuter 27cm , area= 18 cm . Fond it's high?

Answer 1

Perimeter of equilateral triangle = 27cm

3a = 27

a = 27/3

a = 9 cm

Height of equilateral triangl = root 3/2×a

h = 9 root3 ÷ 2

or 4.5 root 3 cm