Q117 of 142 Page 88

Find the area of a square field if its perimeter is 96 m.

Given: perimeter = 96 m

Let length of square = a

Then 4a = 96m

⇒ a = 24m

Area of square = side × side

= 24 × 24

= 576m²

115

If one side of a cube is 15 m in length, find its volume.

116

The dimensions of a rectangular field are 80 m and 18 m. Find the length of its diagonal.

118

Find the length of each side of a cube if its volume is 512 cm³.

119

Three numbers are in the ratio 1 : 2 : 3 and the sum of their cubes is 4500. Find the numbers.