Question

A rectangle is twice as long as it is wide. if it is bordered by a strip 2m wide its area is increase by 160 sq m .what are the dimensions?

Answer 1

Hi dear

l =2b

let the breath be b

area=l×b

=2b×b

=2bsqure

2bsquare=160

b=80m

breadth =80m

lemgth=160m

Brainiest answer please.

Answer 2

Answer:

Step-by-step explanation:

Let width=x then length=2x

then area=x*2x=2x² m²

if the rectangle is bordered by a strip 2m wide then its

length = 2x+4 m

width=x+4

new area=(x+4)(2x+4)=2x²+12x+16

change i area=2x²+12x+16-2x²

=12x+16=160

12x=160-16=144

x=144/12=12

so the sides of rectangle are 24 m and 12 m