Asked by lesley

the length of a rectangle is 2cm longer than the width. if its length and width are both increased by 4cm, its area is increased by 72 cm^2. find the dimensions of the original rectangle.
Answered by Reiny
Why are you calling this trigonometry?

width -- x
length -- x+2
area = x(x+2)

new width = x+4
new length = x+6
new area = (x+4)(x+6)

(x+4)(x+6) - x(x+4) = 72

solve for x
Answered by Anonymous
8 and 6
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