# Rectangle - area, perimeter

The area of a rectangular field is equal to 300 square meters. Its perimeter is equal to 70 meters. Find the length and width of this rectangle.

Result

a =  20 m
b =  15 m

#### Solution:

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$b=a_{ 2 } \ \\ b=35-a=35-20=15 \ \text{m}$

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