Question

Two adjacent sides of ||gm in the ratio 4 : 5 if the smaller side is 20 cm find the perimeter of ||gm

Answer 1

Answer:

let the sides of 4x and 5x

given

4x =20cm

x=5cm

so, 5x =5×5= 25cm

perimeter=2(l+b)

= 2(20+25)

=2(45)

=90 cm

Answer 2

Step-by-step explanation:

perimeter of parallelogram = 2(a+b)

Given,

Ratio is 4:5

In which, 4=20cm

so,2(20+5)=40/5=8cm