Geometry
Question 1 |
How many diagonals can be drawn by joining the angular points of an octagon?How many diagonals can be drawn by joining the angular points of an octagon?
14 | |
20 | |
21 | |
28 |
Question 1 Explanation:
→A polygon's diagonals are line segments from one corner to another (but not the edges).
→The number of diagonals of an n-sided polygon is: n(n − 3) / 2.
→Examples:
→The number of diagonals of an n-sided polygon is: n(n − 3) / 2.
→Examples:
Question 2 |
The conic section that is obtained when a right circular cone is cut through a plane that is parallel to the side of the cone is called
parabola | |
hyperbola | |
circle | |
ellipse |
Question 2 Explanation:
There are 2 questions to complete.