Question

Two sides of a parallelogram are in the ratio 4:3.If its perimeter is 70cm, find the lengths of its sides.

Answer 1

Answer :

• 20cm
• 15cm

Given :

• Two sides of a parallelogram are in the ratio is 4 : 3
• Perimeter is 70cm

To find :

• Lengths of its sides

Solution:

• Let the length of two sides of a parallelogram be 4x and 3x

As we know that ,

• Perimeter of rectangle = 2(l + b)

Perimeter = 70

➼ Perimeter = 2(4x + 3x)

➼ 2(4x + 3x) = 70

➼ (4x + 3x) = 70/2

➼ 7x = 35

➼ x = 35/7

➼ x = 5cm

Now,

Length of its sides

• 4x = 4(5) = 20cm
• 3x = 3(5) = 15cm

Answer 2

Answer:

20cm

15cm

Given :

Two sides of a parallelogram are in the ratio is 4 : 3

Perimeter is 70cm

To find :

Lengths of its sides

Solution:

Let the length of two sides of a parallelogram be 4x and 3x

As we know that ,

Perimeter of rectangle = 2(l + b)

Perimeter = 70

➼ Perimeter = 2(4x + 3x)

➼ 2(4x + 3x) = 70

➼ (4x + 3x) = 70/2

➼ 7x = 35

➼ x = 35/7

➼ x = 5cm

Now,

Length of its sides

4x = 4(5) = 20cm

3x = 3(5) = 15cm