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creativ13 [48]
3 years ago
7

Problem page the length of a rectangle is four times its width. if the perimeter of the rectangle is 70 cm , find its area.

Mathematics
1 answer:
agasfer [191]3 years ago
5 0
So we can call the width of the rectangle x.
So then the length would be 4x.
The perimeter would then be 10x.
Since the perimeter is 70, we can say 70 = 10x.
And then simplify that to 7 = x.
So the length of a rectangle would be 28 cm, and the width would be 7.
So to find the area, just multiply length by width.
28*7 = 196 square cm
So the rectangle's area is 196 square cm.

I hope I helped!
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