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15-05-2018
Mathematics

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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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TheSUPERIOR TheSUPERIOR

20-05-2018

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

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