Concave and Convex Polygons

Q.

Find the sum of exterior angles of a hexagon.

1. 540°

2. 360°

3. 460°

4. 180

Q. What is the difference between (i) convex polygons and concave polygons ( ii) polyhedrons and non - polyhedrons. Give example of each.

Q.

In a concave polygon, no part of any of their diagonals is external.

1. Concave Polygon

2. Convex polygon

Q. What is Quadilateral?

Q. What is the sum of the exterior angles of any regular polygon?

1. 360 degree
2. 540 degree
3. 120 degree
4. 180 degree

Q. How many interior angles does a pentagon have?

1. 5
2. 6
3. 10
4. 7

Q. If a part of the line connecting two interior points that lie outside the polygon, then it is called ________.

1. irregular polygon
2. convex polygon
3. concave polygon
4. regular polygon

Q.

A convex polygon has at least one diagonal external to it.

1. True
2. False

Q.

Which among the figures is not a convex polyhedron?

1. 

2. 

3. 

4.