Question

The sides of a rectangle are in the ratio 2:3 , and perimeter is 20cm. Find each sides of the rectangle.

Answer 1

STEP BY STEP EXPLANATION:

Given,

Ratio = 2:3

let the numbers be 2x and 3x

Perimeter = 20cm

Perimeter = 2 × ( lenght + breadth )

Therefore

2 × ( 2x + 3x ) = 20cm

2 × 5x = 20cm

10x = 20cm

x = 20÷10 cm

x = 2cm

Therefore, the sides are :

breadth = 2x = 2 × 2 = 4cm

lenght = 3x = 3 × 2 = 6cm

Answer 2

Answer:

2(l+b)=20

l+b=10

l:b=2:3

2x+3x=10

5x=10

x=2

l=4

b=6

Step-by-step explanation:

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