Question

Find the value of the unknown exterior angle x in each of the following diagram:
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Answer 1

Answer:

Step-by-step explanation:

let the third angle of triangle be y.

50° +50°+ y=180° (Angle sum property of a triangle)

y= 80°

y+x = 180° (Linear Pairs)

80° + x =180°

x=100°

OR

50°+50°=x(sum of two interior angles of a triangle is equal to exterior angle formed by extending the side  oposite to their side)

x=100°

Answer 2

Answer:

100

Step-by-step explanation:

Exterior angle:sum of two opposite angle