Question

find the sides of a parallelogram whose sides are in the ratio of 3 : 5 and its perimeter is 1680 cm. Relpy pllz​

Answer 1

Answer:

315 cm and 525 cm

Given:

Sides of llgm=3 cm and 5 cm

Perimeter=1680 cm

To find:It's sides

solution:-

let the sides be 3x and 5x

We know that

Perimeter of Parallelogram=2(a+b)

1680=2(3x+5x)

1680=2(8x)

1680=16x

105=x

x=105

---------

3x=3×105

=315 cm

5x=5×105

=525 cm

Answer 2

Perimeter of parallelogram = 1680 cm.

Sides of parallelogram are in the ratio 3 : 5.

__________ [ GIVEN ]

• Let first side of parallelogram be 3M and second side be 5M.

____________ [ ASSUME ]

We know that..

» Perimeter of parallelogram = 2(a + b)

→ 1680 = 2(3M + 5M)

→ 1680 = 2(8M)

→ 1680 = 16M

→ 16M = 1680

→ M = 1680/16

→ $\boxed{M\: = \:105}$

____________________________

So,

First side of parallelogram = 3M

=> 3(105)

=> 315

Second side of parallelogram = 5M

=> 5(105)

=> 525

____________________________

Sides of parallelogram are 315 cm and 525 cm

__________ [ ANSWER ]

____________________________

✡ VERIFICATION

From above calculations we have M = 105

Put value of M in this : 1680 = 2(3M + 5M)

=> 1680 = 2(8M)

=> 1680 = 16M

=> 1680 = 16(105)

=> 1680 = 1680

_____________________________