Question 468329
I have to find the area and perimeter of a rectangle.
 On the top of the rectangle is d+10 and on the right side of the rectangle just has a single d. 
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d has to be part of the answer
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The perimeter:
p = 2(d+10) + 2d
p = 2d + 20 + 2d
p = 4d + 20
:
The area
A = d*(d+10)
A = d^2 + 10d