The exterior angle of a triangle is 115° and the corresponding interior opposite angles are in the ratio 2 : 3. The measure of greatest angle of the triangle is:
A. 70°
B. 65°
C. 69°
D. 79°
Answer: Option C
Solution (By Examveda Team)
5x = 115° (by exterior angle theorem)
x = 23°
2x = 46°
3x = 69°
∠ABC = 65°
The greatest angle = 69°
This Question Belongs to Arithmetic Ability >> Geometry
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