An equilateral triangle has sides of length 8 cm. A square has the same perimeter as the triangle. Work out the area of the square.

Question

 I need help 

Answer 1

Perimeter of  equilateral triangle = 8+8+8 =24

 

so perimeter of square = 24

 

so side of square = 24/4 =6

 

so area of square = (6)²  = 36 square cm

Answer 2

P of Δ = 3s

P = 3(8)

P = 24 cm

P of Square = 4s

24 = 4s

6 = s

 

A of Square = s²

A = 6²

A = 36 cm²