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The exterior angle of a triangle is 115 and the corresponding...

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Geometry
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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:

Answer & Solution
Correct Answer: Option C
Geometry mcq question image
5x = 115° (by exterior angle theorem)
x = 23°
2x = 46°
3x = 69°
∠ABC = 65°
The greatest angle = 69°
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