Question

The perimeter of the rectangle is 78 cm.If the ratio of the length and breadth is 8:5 then find the length of the rectangle.

Answer 1

Answer:

Step-by-step explanation:

Ratio=8+5=13

perimeter=78cm

8/13 *78=48

5/13 * 78=30

30 * 48 =1440cm2

Answer 2

YOUR ANSWER.

2× length + 2× breadth = 78cm

length + breadth =39cm

breadth = 39 - length

given,

length / breadth = 8/5

length / 39 - length = 8/5

5×length = 8×(39 - length)

5×length = 312 - 8×length

13×length = 312

length = 24

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