Question

An original rectangle has a length of 12 and a width of 12. What happens to the area if the new width is three times the original width? Verify your answer.

Answer 1

it will increase
a=3(12)x12
a=432

Answer 2

12x12=area
144=area

when width is 3 times
12*3(12)=432


432/144=3
Therefore, the new area is 3 times of the original

Answer 3

A=a.b
A2=3a.b
so the area will be 3 thime of the first area too