Question

The length and width of a rectangle are in the ratio 5:3. Find the dimensions of the rectangle, if its perimeter
is 112 cm.​

Answer 1

Answer:

Ratio of sides=5:3.

Let the sides be 5x and 3x repectively.

Let the length be 5x abd breadth be 3x.

Perimeter =112cm

Perimeter = 2(l+b)

112 = 2× ( 5x + 3x)

112 = 2× 8x

112= 16x

x= 112 /16

x = 7

5x= 5×7=35 cm

3x= 3×7= 21 cm

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Answer 2

Answer:

Let 5 be y.

3 be y

112= 2(5y+3y)

112=10y+6y

112=16y

y=112/16

y=7