Question

Theratio of the length and the breadth of a rectangle is 4 : 3 and the area of therectangle is 6912 sq cm. Find the ratio of the breadth and the area of therectangle?

Answer 1

let the ratios be x 4x and 3x

area of rec. = L×B

6912 = 4x × 3x

6912 = 12x raised to the power 2

x raised to the power 2 = 6912/12

so x =
$\sqrt{576}$
x = 24

3x = 72

4x = 96

so the ratio of area to breadth is 6912 : 72

hope it helps u...!!!

Answer 2

Here is your solution

Given :-

The ratio of length and breadth of the given rectangle is 4:3

Let the length and breadth be 4x and 3x .

as area of rectangle = length × breadth

=>6912= 12x^2 =
=> 6912/12=x^2
=> 576=x^2
=>24=x

length = 4x =4×24=96
and breadth = 3x = 3×24=72

perimeter of the rectangle = 2 (l + b)
=> 2× (96+72)
=>336cm

Area of rectangle =l×b
=>96×72=6912m^2

Ratio of breath and rectangle =72/6912=3:288

hope it helps you