Question

The area of a equilateral triangle is 16✓3cm3. Find the perimeter.

Answer 1

Area of Equilateral triangle = 16 √3 cm^3

 So, √3/4 * side² = 16√3
                   side² = 16*4
               so, side = 8 cm

So Perimeter = 3*side = 3*8 = 24 cm  [∵All sides are equal]

Answer 2

area o a triangle=√3 a²/4
√3 a²/4=16√3
a²/4=16
a²=16 x 4
a²=64
a=8
 therefore perimeter =24cm