Question

The perimeter of a square of side 12 cm is the
same as that of a 15 cm long rectangle. Find
the area of the rectangle.​

Answer 1

Answer:

Step-by-step explanation:

Given-

Perimeter of square= perimeter of rectangle

=> 4xside = 2 (l+b)

4x12=2(15+b)

24=15+b

b=24 - 15

Therefore breadth of rectangle = 9cms

 area of rectangle= l x b

= 15 x 9

= 135

Answer 2

Step-by-step explanation:

Side of square = 12cm

Perimeter of square = 4 × side

= 4 × 12cm = 48 cm

Perimeter of square = Perimeter of rectangle

Perimeter of rectangle = 48 cm

Length of rectangle = 15 cm

Breath of rectangle = 2 × length + breath

= 2 × 15 + x = 48cm

x = 48 -- 15/ 2

x = 9 cm

Area of rectangle = Length × Breath

= 15 × 9 cm

= 135 cm2

Answer Area is 135cm2....