Question

the perimeter of a rectangle is 64m . if one side of the rectangle is 20m what is the measure of other side ? what is its area?​

Answer 1

Step-by-step explanation:

let another side be a .

Perimeter of rectangle= 2(l+b)

64=2 (a+20)

32= a+20

12= a

another side is 12

area of rectangle = l×b

=12×20

=240.

Answer 2

Answer:

Breadth = 12 m

Area = 240 Sq. m

Step-by-step explanation:

Perimeter of a Rectangle = 2(L +B)

2(L +B) = 64 m

2(20 + x) = 64 m

40 + 2x = 64 m

64 - 40 = 24 m = 2x

x = 24/2 = 12 m

Area of a Rectangle = L x B

20 x 12 = 240 sq. m

Hope this answer was helpful