Question

The length & width of a rectangle is 14 cm & 8 cm respectively. Find
(i) Perimeter of rectangle
(ii) Area of rectangle
(iii) What will be the area of rectangle if all it length is increased by 2 cm & width is reduced
by 2 cm

Answer 1

Let length =l length =ω⇒

(1)l−4=ω+3...(1)

⇒l=ω+7

(2)l.ω=(l−4)(ω+3)

(ω+7)(ω)=(ω+3)

2

ω

2

+7ω=ω

2

+9+6ω

ω=9⇒l=16

∴ Perimeter =2(l+ω)

=2(9+16)=2×25

=50m