Question

the perimeter of a rectangle is 320 CM and the length of the sides is 3 is to 5 find the actual length and breadth of the perimeter​

Answer 1

Answer:

Hey Friend,

Let x be the common factor

Ratio=3x:5x

Perimeter= 2(l+b)

320= 2(3x+5x)

320/2= 8x

8x= 160

x= 20

Therefore,

Length=3x=3*20=60

Breadth=5x=5*20=100

Hope it helps.... :)

plz mark as brainliast answer

Step-by-step explanation:

Answer 2

Let length be 5x

And breadth be 3x

Perimeter of a rectangle= 2×(l+b)

Therefore,

2×(3x+5x)= 320

2×(8x) = 320

16x = 320

x = 320/ 16

x = 20

Therefore, length= 5×20

= 100cm Ans

And breadth= 3×20

= 60 cm Ans