Question

In a parallelogram, the ratio of the adjacent sides is 4: 5 and its perimeter 72 cm, then the longest side is

Answer 1

Answer:

The longest side is 20cm

Step-by-step explanation:

Let the breadth be 4x. So, length =5x we know perimeter is 2(l+b) which is equal to 72 or 2(5x+4x) or 18x=72 so x =4 sides are 16cm and 20 cm

Plz mark me as the brainliest and follow me

Answer 2

Answer:

In a parallelogram opposite sides are equal and parallel.

If the ratio of one of the adjacent sides is 4:5, then the ratio of the remaining two sides is also 4:5.

Taking the sides as 4x, 5x.

Perimeter = 72cm

2*(4x+5x)=72cm.

( as the other two sides are also 4x and 5x)

2*9x = 72cm

18x = 72cm

x = 72/18

=4.

The longest side is 5x.

therefore its length is 5*4 = 20cm