Question 1
The area of a rectangle is 35 cm² and its length is 7 cm. Find the perimeter of the rectangle?
Explanation
Given
Area = 35 cm²
length = 7 cm
Breadth of the rectangle
Perimeter of the rectangle = 2 x ( l + b ) cm
= 2 x ( 7 + 5 ) cm
= ( 2 x 12 ) cm
= 24 cm
Hence, perimeter of the rectangle is 24 cm.
Question 2
The area of a rectangle is 108 cm² and its length is 12 cm . Find the perimeter of the rectangle?
Explanation
Given
Area = 108 cm²
length = 12 cm
Breadth of the rectangle
Perimeter of the rectangle = 2 x ( l + b ) cm
= 2 x ( 12 + 9 ) cm
= ( 2 x 21 ) cm
= 42 cm
Hence, perimeter of the rectangle is 42 cm