Question

In the adjoining figure, AOB is a straight line.
Find the value of x.​

Answer 1

X+3 + x+20 + x+7 = 180. ( angle sum property.).


3x + 30 = 180

3x = 180 - 30

3x = 150

X = 150/ 3 =50

Answer 2

Step-by-step explanation:

(x + 3)° + (x + 20)° + (x+7)° = 360° [:.angle AOB is a straight line]

= x + 3 + x + 20 + x + 7 = 360

= x + x + x + 3 + 20 + 7 = 360

= 3x + 30 = 360

= 3x = 360 - 30

3x = 330

x = 330/3

x = 110.

Hence, the value of x is 110.

And, (x+3)° = 113.

(x+20)° = 130.

(x+7)° = 117.

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