Question

The sides of a rectangle are in the ratio 4:7 ....The perimeter is 144cm ....Pls answer quickly ...emergency ...will give 50 points

Answer 1

Answer:

Let the ratio be 4x and 7x

A/q

2(4x+7x)=144

22x=144

X=144/22=71/11

So.4x=284/11;7x=497/11

Answer 2

hi mate,

Answer : Let the ratio of sides of rect. be 4x : 7x

Perimeter = 144 cm

A/q

2 ( l + b ) = perimeter

=> 2 ( 4x + 7x ) = 144

=> 11x = 144/2

=> 11x = 72

=> x = 72/11 cm

Length = 7x = 7× 72/11 = 504/11

= 45.81818182 cm

breadth = 4x = 4 × ,72/11 = 288/11

= 26.18181818 cm

i hope it helps you.