Mathematics for IGCSE & O level - Angles (Section 3 - No. 36)
If two parallel lines are cut by a transversal, and one of the interior angles on the same side of the transversal is 110°, what is the measure of the other interior angle on the same side?
70°
90°
110°
180°
解释
Co-interior angles add up to 180°. Therefore, 180° - 110° = 70°.