

InterviewSolution
Saved Bookmarks
1. |
The angles of a quadrilateral are in AP whose common difference is 10º. Find the angles. |
Answer» To Find: The angles of a quadrilateral. Given: Angles of a quadrilateral are in AP with common difference = 10°. Let the required angles be a, (a + 10°), (a + 20°) and (a + 30°). Then, a + (a + 10°) + (a + 20°) + (a + 30°) = 360° ⇒ 4a + 60° = 360° ⇒ a = 75° NOTE: Sum of angles of quadrilateral is equal to 360° So Angles of a quadrilateral are 75°, 85°, 95° and 105°. |
|