Question

the area of equilateral triangle is 81 root 3 cm square find its height​

Answer 1

Answer:

the side of equilateral triangle is 18 cm kids height is 9root 3

Answer 2

Area of equilateral triangle =  √3/4 × a²

√3/4 × a² = 81√3

a² = 324

a = 18

Height = √3/2 × a

h = √3/2 × 18

h = 9√3 cm

Hope it helps..