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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:
Closed curve
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
What is a regular polygon?
How many sides does a regular polygon have if each of its interior angles is 165°?
Is it possible to have a regular polygon with measure of each exterior angle as 22°?
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
State the name of a regular polygon of 4 sides.
The name of three-sided regular polygon is ______.
Find the measure of each angle of a regular octagon.
