An angle is 4 times its complement. Find the angle.
- A.60°
- B.68°
- C.72° ✓
- D.76°
Explanation: Let the angle be x. x = 4(90−x) gives 5x=360, so x=72°.
Class 6 IMO Mathematics Olympiad practice · Geometry & Spatial Thinking · Lines & Angles
← All Lines & Angles questions