Question

2.The perimeter of a rectangle is 230 cm. If the length of the rectangle is 70 cm, find its breadth and area.​

Answer 1

Answer:

45cm , 3150 cm sq.

Step-by-step explanation:

let length be x

230=2{70+x}

x = 45 cm

area = length x breadth

area = 70 x 45= 3150 cm sq.

Answer 2

Step-by-step explanation:

Perimeter of rectangle=2(l+b)

=> 230 = 2 ( 70 + b )

=> 230/2 = 70 + b

=> 115 = 70 + b

=> 115 - 70 = b

=> b = 45

Now, Area of rectangle = l × b

= 70 × 45

= 3150

Therefore Breadth= 45 cm

And Area= 3150 cm²

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