One angle of a triangle measures 60°. The other two angles are in a ratio of 5:7. What are the measures of those two angles?

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asked Dec 27, 2019 147k views

1 Answer

Hadja · Answer 1 · 2019-12-31T22:19:34+0000

Sum of angles of a triangle : 180°
180° - 60° = 120°
5+7 = 12
(5/12)120 = 50° ⇒ one angle
(7/12)120 = 70° ⇒ other angle