Question

Question:

4 of 39
Lesson 17
Find the unknown angle for the following right triangle:
Angle A Angle B Angle C
17° 90° ?
NOTE: Please DO NOT type in the word DEGREES in your answer. If you enter the word DEGREES, your answer will be
considered incorrect.
degrees
Enter answer:​

Answer 1

73°

Explanation:

Given, Angle A = 17° and Angle B = 90°

As it is a triangle, sum of all the angles are 180°

so,

⇒ Angle A + Angle B + Angle C = 180°

⇒ 17° + 90° + Angle C = 180°

⇒ Angle C = 73°