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irina [24]
3 years ago
8

10.

Mathematics
1 answer:
Inga [223]3 years ago
6 0

Answer:

length = 15

breadth = 25

Step-by-step explanation:

length = breadth + 10

let length be x

length = x

breadth = x + 10

perimeter = 2(length) + 2(breadth)

80 = 2(x) + 2(x + 10)

80 = 2x + 2x + 20

80 = 4x + 20

80 - 20 = 4x

60 = 4x

15 = x

length = x = 15

breadth = x + 10 = 25

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