# Comparing areas?

##### 1 Answer

Dec 2, 2017

The area decreases from

#### Explanation:

Initially, the sides of a square is 15cm long. The area initially (which you got) is

If all 4 sides are decreased by 5cm, it means that instead of all the sides being 15, it is now 10cm. (

To find the total decrease, we take the original area and subtract it by the new area.