A triangle has an exterior angle of 110°, and its interior opposite angles are (2y+10) deg and (3y) deg. Find the larger of these two interior opposite angles.
Class 7Exterior Angle PropertyTriangles
A54
B66
C120
D60
Step-by-Step Solution
(2y+10)+3y=110,5y+10=110,5y=100,y=20. Angles: 2(20)+10=50 and 3(20) = 60. Larger = 60°.
Answer: D) 60
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