Question

The length of a rectangle is 6cm greater than its width. The area of the rectangle is 40

cm2.The length of the perimeter is?

A) 14cm

B) 26cm

C) 28cm

D) 52cm

​

Answer 1

Answer:

14 cm

Step-by-step explanation:

Perimeter of rectangle =40 cm (given)

condition :- 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