Question
If the sides of of a square are decreased by 2cm, the area is decreased by 36cm square. What are the dimensions of the original square?
original square: x by x
new square: x-2 by x-2
old area = x^2
new area = (x-2)^2
The difference in these area = 36
difference means subtract.
take it from there.
10
original square: x by x
new square: x-2 by x-2
old area = x^2
new area = (x-2)^2
The difference in these area = 36
difference means subtract.
take it from there.
10