Question

If the length of a rectangle is double than the breadth the perimeter is 40m find its area

Answer 1

Answer:

length =14 cm, breadth =6 cm

Step-by-step explanation:

Perimeter of rectangle =40 cm (given)

length = 2× breadth +2

⇒l=2b+2

perimeter p=2(l+b)=40

⇒2(2b+2+b)=40

⇒2(3b+2)=40

⇒6b=40−4=36

∴b=6cm

l=2×6+2

=12+2

=14cm

∴ length =14 cm, breadth =6 cm