Question

5.
Lengths of two sides of a parallelogram are in the ratio of 2 : 3. Find the side
parallelogram if its perimeter is 120 cm.​

Answer 1

Step-by-step explanation:

Let the two sides of the parallelogram be 'x' and 'y'.

Therefore, Breadth = 2x

Length = 3x

Perimeter of a parallelogram = 2( length + breadth) because it's opposite sides are equal.

120 = 2( 3x +2x)

120 = 2×5x

120 = 10x

Applying transposition

x = 120 /10

x = 12

Length = 3x = 3 × 12= 36cm

Breadth = 2x = 2×12 = 24cm.

Hope this will help you

:D

Answer 2

Answer:

Length-36cm, Breadth-24cm

Step-by-step explanation:

2:3= 2x and 3x

{After oppening the ratio we generally put a variable for equations eg:-x}

Perimeter of a parallelogram=2(a+b)

[a-2x, b-3x] (Perimeter is given as 120°)

120=2(2x+3x)

120=2(5x)

120=10x

120/10=x

12=x

Therefore the l and b are:-

Length (l)=12×3=36cm

Breadth(b)=12×2=24cm

Hope it helps!(도움이 되기를 바랍니다!)

Borahae(보라해)