Mathematics for IGCSE & O level - Angles (Section 2 - No. 42)
In a triangle, two angles measure 40° and 60°. What is the measure of the third angle?
40°
60°
80°
100°
स्पष्टीकरण
Sum of angles in a triangle is 180°. Third angle = 180° - 40° - 60° = 80°.