SOLUTION: If the sides of a square are lengthened by 5cm, the area becomes 81cm^2. Find the length of a side of the original square.

SOLUTION: If the sides of a square are lengthened by 5cm, the area becomes 81cm^2. Find the length of a side of the original square.

Algebra.Com

Question 157330: If the sides of a square are lengthened by 5cm, the area becomes 81cm^2. Find the length of a side of the original square.
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!
Let = original side
= lengthened by 5 cm

So, ---------------> working eqn

, factor out, perfect square

2 values: ----------> don't use
---------------------> original side
In doubt? go back working eqn,

thank you,
Jojo
RELATED QUESTIONS
If the sides of a square are lengthened by 5cm, the area becomes 81cm^2. Find the length... (answered by ankor@dixie-net.com)

if the sides of a square are lengthened by 5 cm, the area becomes 81cm^2. Find the length (answered by jorel1380)

If the sides of a sqaure are lengthened by 5cm. and the area becomes 81cm^2. What was the (answered by mananth)

If sides of a square are lengthened by 5cm, the area becomes 169cm^2. Find the length of... (answered by richwmiller)

If the sides of a square are lengthened by 8cm, the area becomes 144cm^2. Find the length (answered by rfer)

If the sides of a square are lengthened by 8cm, the area becomes 196cm^2. Find the length (answered by richwmiller)

if the sides of a square are lengthened by 8cm, the area becomes 144cm^2. Find the length (answered by nerdybill)

If the sides of a square are lengthened by 7cm, the area becomes 121cm^2. Find the length (answered by drk)