Question

12. What happens to the rectangle when
(a) Its length is doubles and breadth remaining the same?
m) Its length and breadth both are doubled?
ti) Its breadth becomes 4 times and length gets doubled
(iv) Find the breadth of a rectangle whose length is 70 cm and perimeter 20 cm

with correct explanation ​

Answer 1

Step-by-step explanation:

Since, we know area of a rectangle=length×breadth

a) If its length is doubled and breadth remains the same, then the area becomes twice that of the original one.

m) If its length and breadth both are doubled, then, its area becomes 4 times of the original one.

iv)

Given,

l = 70 ccm