Question

II
24.The sides of a rectangle are 20 cm and 15 cm. If each side is increased by 20%, find
the
percentage increase in the area.​

Answer 1

Answer:

Step-by-step explanation:

l=20cm

b=15cm

area=l*b

20*15

=300cm

new length=20+20% of 20

20+20/100*20

=24cm

new breath=15+20% of 15

15+20/100*15

18cm

24*18 square

=432cm square

%of area increased=(432-300)/300*100%

132/3

=44

ans.44%