Question

the ratio of two angles of a linear pair us 4:5 , find the angles​

Answer 1

Answer:

Step-by-step explanation:

ratio = 4:5

let, first angel be 4x

and second angel be 5x.

4x + 5x = 180   ....( angeles in linear pair are always supplementary )

       9x = 180

        x  =  180/9

         x = 20

therefore,

first angel = 4x = 4 X 20

                         = 80*

second angel = 5x = 5 X 20

                               =  100*

Answer 2

Given:-

• Ratio of two linear pair = 4:5.

To Find:-

• Find the angles

Solution:-

Let consider the two angles of a linear pair be 4x and 5x respectively.

According to the question —

$\sf \implies \: 4x + 5x = 180 \\ \\ \sf \implies \: 9x = 180 \\ \\ \sf \implies \: x = \frac{180}{9} \\ \\ \sf \implies \: x = 20$

Hence,

• First angle = 4x = 4* 20 = 80 degree
• Second angle = 5x = 5* 20 = 100 degree