Question

The perimeter of a rectangle is the same as the perimeter of a square. If the side length of the square is 25 units and the breadth of the rectangle is 15 units, find the length of the rectangle.

Answer 1

Answer:

P of rectangle = 2(L + B)

P of square = 4a

Perimeter of square = 4 ×25 = 100 units

Since perimeter of square= perimeter of rectangle

2(L + B) = 100 units

Here B = 15 units

Substituting B = 15

2(L + 15) = 100

L + 15 = 50

L = 50 - 15

L = 35

:)

Answer 2

Answer:

P=2(l+b)

100=2×15+2b

100=30+2b

100-30=2b

70= 2b

b=70÷2

b= 35