Question

a square of area 81 sq m has the same perimeter as that of an equilateral triangle find the length of each side of the triengle

Answer 1

Area of square = (length of side)^2
81 = side^2
Side = 9 cm

Perimeter of this square = 4*9 = 36 cm

Now,
Perimeter of the equilateral triangle = 36 m
Length of each side = 36/3 cm = 12 cm

Answer 2

Answer:

Area of square=(Side × Side)

2= 81= 2 Side

Side 9 cm

Step-by-step explanation:

Perimeter of the square =4×9=36

Perimeter of an equilateral triangle=36cm

Length of each Side =36/3=12cm