Question

find the value of x:​

Answer 1

Answer:

180-100

=80

x+120+50+80=360

=170+80=360

360-250

60=x

Answer 2

Answer:

Here all the angles in a quadrilateral is 360°

One exterior angle is 100°

So, it's interior angle will be 180°- 100° = 80°

(Straight angle = 180°)

Then, angles = 120 , 80 , and 80 degrees

Let the unknown angle be x

So, 120 + 80+ 80 + x = 360

280 + x = 360

x = 360 - 280

= 120°

Hence, x = 120°

Step-by-step explanation:

Hope you get it

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