Question

8. If the side of
side of a square is 10m, find the change in its area if :
1. the length of the side is increased 2 times
2. the length of the side is increased 3 times​

Answer 1

Step-by-step explanation:

area of square =10×10

=100

when length increased by 2

area of a square=10+2×10+2

=12×12

=144

when the length decreased by 3

area of square=10-3×10-3

=7×7

=49

change:in 1st case

=144-100

=44

area is increased by 44m

in 2nd case"

=100-49

= 51m

Answer 2

Answer:

1. 2 × 10 = 20

area of square = a × a

= 20 × 20

= 400

2. 3 × 10 = 30

area oof square = a × a

= 30 × 30

= 600