Question

calculate the hight of an equilateral triangle whose perimeter is 63 cm.

Answer 1

sidelength=63/3
height=root 3/2×side
length root 3/2×3/63​=18.18​

Answer 2

Sides=3

Side of length =63/3

Perimeter =63
................... _
Height =.. /3/2*side of length

__
/3./2*63/2
... * _
=))7/3