Question

the perimeter of an equilateral triangle is 30 cm.the area is​

Answer 1

Answer:

side of equilateral triangle = 30 / 3

= 10 cm

area of equilateral triangle = √3/4×(side)^2

√3/4×10^2

√3/4×100

√3×25

25√3 cm

Answer 2

Answer:

3x=30

x=10

now

by putting herons formula yu will get the area