Question

the ratio between length and breadth of a rectangle is 5:4 and it's area is 320cm square the breadth of a rectangle is​

Answer 1

Step-by-step explanation:

Let the length and breadth of the rectangle be 5x and 4x.

Now:-

Area = length * breadth

320 cm2 = 5x * 4x

= 20x

20x = 320cm2

x = 320

20

x = 16

---------------------------------------

5x = 5 * 16 = 80

4x = 4 * 16 = 64

Thus length - 80 cm and breadth - 64 cm

Answer 2

Step-by-step explanation:

Suppose that the length of rectangle= 5x

breadth = 4x

the area of rectangle = length*breadth

5x*4x = 320

20x =320

x=320/20

x = 16

length= 5x=5*16=80cm

breadth= 4x=4*16=64 cm

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