Question

The ratio of the sides of a parallelogram is 3:4. If the perimeter is 84cm ,find the sides of parallelogram.

Answer 1

Step-by-step explanation:

Let the first side=3x

and, second side =4x

perimeter of parallelogram= sum of all sides

=>84=3x+3x+4x+4x

=>84=14x

=>x=84/14

=>x=6

So Length = 3x= 3*6=18cm

and, breadth=4x=4*6=24cm

Hope you like it..

Please mark me the branliest..

Answer 2

Answer:

12 , 16 cm

Step-by-step explanation:

If the two sides have a ratio of  

3 : 4 , that means their sides can be represented as  

3 x  and  4 x , which also have a ratio of  

3 : 4 .

Thus, if the sides of a parallelogram are  

3 x  and  4 x , its perimeter is equal to the following expression:

P =2 ( 3 x ) + 2 ( 4x )

The perimeter is  

56 .

56 = 2 ( 3 x ) + 2 ( 4 x )  

Divide both sides by  2 .

28 = 3 x + 4 x

28 = 7 x

x = 4

Plug these back into our side lengths:  3 x  and  4 x    

3 ( 4 ) = 12 cm

4 ( 4 ) = 16 cm