Question

The length of a rectangle is 7 cm more than its breadth? if the perimeter is 62 cm find the length and breadth
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Answer 1

Step-by-step explanation:

2*L + 2*B = perimeter of a rectangle = 62cm.

Given L = B+7, we can substitute this in the above equation.

Thus, 2*(B+7) + 2*B = 62

2*B+14+2*B = 62

4*B = 62-14 = 48cm

Thus, B = 48/4 = 12cm.

Then, Length L = 12+17 = 19cm.

Thus, the Length is 19cm and Breadth is 12cm.

Check: Perimeter = 2*L+2*B = 2*19+2*12 = 38+24 = 62cm.

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Answer 2

Answer:

Let the width of the rectangle is x cm.

Thus the length of the rectangle = x + 7 cms.

We know Perimeter = 2 (length + width)

Perimeter = 2 (x + 7 + x)

Perimeter = 2 (2x + 7)

Perimeter = 4x + 14

62 cm = 4x + 14

4x = 62 - 14

4x = 48

x = 48/4

x = 12 cm.

Thus the width of the rectangle is 12 cm.

Length of the rectangle x + 7 = 12 + 7 = 19 cms.

Step-by-step explanation:

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