Question

The perimeter of a equilateral triangle is 18 cm.Then the height of the equilateral triangle is

Answer 1

Let the sides be x

ATQ

x+x+x=18

3x=18

x=6 cm

1.732×6×6/4

15.588 cm^2

Area = 1/2 ×b×h

15.588 =1/2 ×6×h

15.588=3h

5.196cm =h