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प्रश्न
Classify the following curve as open or closed:
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उत्तर
Open curve: A curve in which the beginning and end point is different or do not cut each other.
Closed curve: A curve in which the beginning and end point is the same and cut each other.
By the above definitions, we can classify the given figure as follow:
Open curve
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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
Draw rough diagram to illustrate the following Open curve .
Classify the following curve as open or closed:
Following are some figures: Classify each of these fugures on the basis of the following:
(i) Simple curve
(ii) Simple closed curve
(iii) Polygon
(iv) Convex polygon
(v) Concave polygon
(vi) Not a curve
Find the number of degrees in each exterior exterior angle of a regular pentagon.
What is the sum of all angles of a hexagon?
Which of the following can never be the measure of exterior angle of a regular polygon?
The number of diagonals in a hexagon is ______.
A polygon is regular if all of its sides are equal.
Find the measure of an are exterior angle of a regular pentagon and an exterior angle of a regular decagon. What is the ratio between these two angles?
