Rectangle 45

The perimeter of a rectangle is 60cm. If the length of the rectangle is 20cm.

a)find the width
b)find the area.

Correct result:

w =  10 cm
S =  200 cm2

Solution:

p=60 cm l=20 cm  p=2(l+w) w=p/2l=60/220=10 cm
S=l w=20 10=200 cm2



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