Question

In the following figure find value of x
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Answer 1

Step-by-step explanation:

First take the linear pair

140+the angle next to it thus the answer is 40 degree.

Now add 90+40 which gives the value of x which is due to exterior angles property

Answer 2

let the triangle be abc

where angle b= 90 ( given )

to find - angle x

here angle a + 140 =180

angle a=180-140

angle a=40

now in triangle abc

angle sum property

angle a+ b+c=180

40+90+c=180

130+c=180

c=180-130

c =50

now angle x+c =180

x+50=180

x=180-50

x=130