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Find the measure of each angle indicated.

A D
A) 21°
C) 23°
E 25°
B) 80°
D) 20°


Find The Measure Of Each Angle Indicated A D A 21 C 23 E 25 B 80 D 20 class=

Sagot :

Let the missing Angle be " x "

We know that Measure of an exterior angle of a triangle is equal to sum of the opposite two interior angles,

that is :

  • x + 80° = 100°

  • x = 100° - 80°

  • x = 20°

value of missing angle = 20°