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प्रश्न
The number of diagonals in a hexagon is ______.
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उत्तर
The number of diagonals in a hexagon is 9.
Explanation:
We know that, number of diagonals of a n-gon = `(n(n - 3))/2`
Here, n = 6,
Therefore the number of diagonals = `(6(6 - 3))/2`
= `(6 xx 3)/2`
= 9
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संबंधित प्रश्न
Examine the table. (Each figure is divided into triangles and the sum of the angles deduced from that.)
| Figure |  |
 |
 |
 |
| Side | 3 | 4 | 5 | 6 |
| Angle sum | 180° |
2 × 180° = (4 − 2) × 180° |
3 × 180° = (5 − 2) × 180° |
4 × 180° = (6 − 2) × 180° |
What can you say about the angle sum of a convex polygon with number of sides?
a) 7
b) 8
c) 10
d) n
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Find the measure of each exterior angle of a regular polygon of 15 sides
Is it possible to have a regular polygon with measure of each exterior angle as 22°?
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(i) Simple curve
(ii) Simple closed curve
(iii) Polygon
(iv) Convex polygon
(v) Concave polygon
(vi) Not a curve
Find the number of side of a regular polygon, when of its angle has a measure of 160° .
Find the number of degrees in each exterior exterior angle of a regular pentagon.
A polygon having 10 sides is known as ______.
What is the maximum exterior angle possible for a regular polygon?
