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expeople1 [14]
4 years ago
12

The length of a rectangle is three times its width. The perimeter is 160 cm. What is the number of square centimeters in the are

a of the rectangle?
Mathematics
1 answer:
zimovet [89]4 years ago
4 0

Answer:

1200 cm²

Step-by-step explanation:

width = x cm

length = 3x  cm

perimeter = 160 cm

2(x + 3x) = 160

4x = 160/2

4x = 80

x = 80/4

x = 20  cm  - width

length = 3x = 3 · 20 = 60 cm

Area = length · width = 60 · 20 = 1200 cm²

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