Question

The perimeter of a parallelogram is 28.cm .If the ratio of the length and breadth is 3:4,what are the dimensions of a parallelogram.​

Answer 1

Step-by-step explanation:

perimeter of a parallelogram= 2(a+b)

we take the ratio as X

as follows: 3x, 4x

28=2(3x)+2(4x)

dividing 2 on both sides we get:

14=7x

x= 2

Now substituting the value in place of X.

length =2(2)=4cm

breadth =3(2)=6cm.

I think u Understand the answer.

Answer 2

Ratio of length and breath can be written as 3x,4x

Perimeter of llgm is 28cm

Sides of a llgm are 3x and 4x its perimeter is equal to= P =2(3x)+2(4x)

28=2(3x)+2(4x)

Divide 2 on both sides

14=3x+4x

14=7x

14/7=x

x=2

Now 3x=3×2=6cm

4x=4×2=8cm ans