Question

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

Answer 1

Answer:

135 cm²

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

now area of rectangle= l x b

= 15 x 9

= 135

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