Question

*Adjacent sides of a parallelogram are in the ratio 1:3 and their perimeter is 88 cm then find the length of those sides.*

1️⃣ 22,66
2️⃣ 20,60
3️⃣ 11,33
4️⃣ 10,30​

Answer 1

Given:

The ratio of adjacent sides of the parallelogram = 1:3

The perimeter of the parallelogram = 88 cm

To find:

The length of the sides of the parallelogram.

Solution:

Let the length of the adjacent sides of the parallelogram be x and 3x.

The perimeter of a parallelogram is twice the sum of the adjacent sides. Therefore,

perimeter = 2(x + 3x)

It is given that the perimeter is 88 cm. Thus,

88 = 2×4x

88 = 8x

x = 11 cm

Thus the length of one side of the perimeter = 11 cm.

The length of another side= 3×11 cm = 33 cm

Option 3 is correct, i.e., the length of the sides is 11 cm, 33 cm.

Answer 2

Given : Adjacent sides of a parallelogram are in the ratio 1:3 and their perimeter is 88cm

To find : the length of those sides​

1️⃣ 22,66

2️⃣ 20,60

3️⃣ 11,33

4️⃣ 10,30​

Solution:

Let say length of adjacent sides of parallelogram are

k and 3k cm

Perimeter = 2(k + 3k) = 88

=> 4k = 44

=> k = 11

Sides are

11 cm

and 3 * 11 = 33 cm

length of those sides​ are 11 and 33 cm

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