Question

the ratio of two sides of a parallelogram is 3 ratio 5 and its perimeter is 80 cm find the sides of the parallelogram​

Answer 1

Answer:

The ratio of sides are 3 : 5.

Therefore, the length be 5x and the breadth be 3x.

Perimeter = 80 cm

2( l + b ) = 80 cm

2( 5x + 3x ) = 80 cm

2( 8x ) = 80 cm

8x = 80 / 2

8x = 40

x = 40 / 8

x = 5 cm.

Therefor, Length = 5x = 5 x 5 = 25 cm.

Breadth = 3x = 3 x 5 = 15 cm.

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Answer 2

Answer:

• Sides of parallelogram are 15 cm and 25 cm.

Step-by-step explanation:

GivEn:

• The ratio of two sides of a parallelogram is 3:5.
• Perimeter of parallelogram is 80 cm.

To find:

• Sides of parallelogram?

Solution:

☯ Let two adjacent sides of a parallelogram be 3x and 5x.

According to the Question:

• Perimeter of parallelogram is 80 cm.

We know that,

Perimeter of Parallelogram = 2 × (sum of adjacent sides)

→ 2 × (3x + 5x) = 80

→ (3x + 5x) = 80/2

→ (3x + 5x) = 40

→ 8x = 40

→ x = 40/8

→ x = 5

Therefore,

• 3x = 3 × 5 = 15 cm

• 5x = 5 × 5 = 25 cm

Hence, adjacent sides of parallelogram are 15 cm and 25 cm.

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★ More to know:

• A parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

• Area of parallelogram = Base × Height.