Geometryeasy · Past Paper
In a triangle, if two angles are 40 degrees and 60 degrees, what is the measure of the third angle?
A70 degrees
B80 degrees
C90 degrees
D100 degrees
✓ Correct Answer: B — 80 degrees
The sum of interior angles of a triangle is 180 degrees. 180 - (40 + 60) = 80 degrees.
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