Question

The ength of a rectangle is 6 cm. more than isbreadth if the area of
rectangle is 112,sqcm. What is the perimeter of the rectangle​

Answer 1

we know that

(x+6)x=112

⟹x

2

+6x=112

⟹x

2

+6x−112=0

⟹x

2

+14x−8x−112=0

⟹x(x+14)−8(x+14)=0

⟹(x+14)(x−8)=0

⟹x+14=0

x=(−14)

⟹x−8=0

x=8

perimeter of rectangle = 2(l+b)

Breadth = x = 8 Cm

Length = x+6 = 14 Cm

2(14+8)

44 cm