Question

The length of the arm of a square is 10 meters. If the length of each arm is increased by 3 m, what will be the change in the area of ​​the square?​

Answer 1

Step-by-step explanation:

area of square =10*10=100m2

now each arm increased by 3

new length=13

new area =13*13=169m2

change in area =69m2

%change=69/100*100=69%