toya96
19.09.2019 •
Mathematics
Problem page the length of a rectangle is four times its width. if the perimeter of the rectangle is 70 cm , find its area.
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Ответ:
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!
Ответ:
6785.84
= base
R squared = 144
144 x pi = 452.389342
Answer x height
452.389342 x 15 = 6785.84