Question

Find the breadth of a rectangle if it's length is 30 cm and the perimeter is 80cm.​

Answer 1

Answer:

breadth is 80 = 2(l+b)

80 = 2×30 + 2b

2b = 80/60

b = 80× 2/60

b = 8/3

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Answer 2

Answer:

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Step-by-step explanation:

perimeter of rectangles =2(l+b)

80=2(30+b)

2(30+b)=80

30+b=40

b=10

so,the breadth is 10cm