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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 points are different or do not cut each other.
Closed curve: A curve in which the beginning and end points are the same and cut each other.
By the above definitions, we can classify the given figure as follow:
Open 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
Draw rough diagram to illustrate the following Closed curve .
State the name of a regular polygon of 3 sides.
Find the number of side of a regular polygon, when of its angle has a measure of 150° .
Find the number of degrees in each exterior exterior angle of a regular pentagon.
Which of the following can never be the measure of exterior angle of a regular polygon?
The number of sides of a regular polygon whose each interior angle is of 135° is ______.
is a polygon.
If the sum of interior angles is double the sum of exterior angles taken in an order of a polygon, then it is a hexagon.
A regular pentagon ABCDE and a square ABFG are formed on opposite sides of AB. Find ∠BCF.
