2015 · Q56
If a star figure is formed by elongating the sides of a regular pentagon, then the measure of each angle at the angular points of the star figure is
Elementary MathematicsQuadrilaterals and Polygons
- A36°
- B35°
- C32°
- D30°
Explanation
Each point of the pentagram is an isosceles triangle with vertex angle 180° − 2×72° = 36° (option A).