Question

A square has a side of 8cm. The area of the square increases by 50%. Work out the percentage increase in the length of the side. Please explain fully how u do it

Answer 1

Because the side has to be increased by 50% 
you find half of 8, which is 4 and you add 8+4 because you add the increased amount
8+4=12
you then just find the area.... so 12x12= 144