Concave and Convex Polygons
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Sum of all interior angles of a nonagon is
1080o
1460o
1260o
1620o
- Irregular polygon
- Concave polygon
- Convex polygon
- Regular polygon
The given figure is a convex polygon.
.
A convex polygon has at least one diagonal external to it.
False
True
Why is a rectangle a convex quadrilateral?
Which of the following are concave polygons?
i, ii, iii
ii, iii, iv
ii, iii
none of these
If the sum of the interior angles of a convex polygon is (4 180o). What kind of polygon is it?
Pentagon
Hexagon
Triangle
Quadrilateral
Sum of all interior angles of a nonagon is
1260o
1080o
1620o
1460o
- 8
- 11
- 10
- 12
- 280 degrees
- 24 degrees
- 360 degrees
- 156 degrees
If two interior angles of a hexagon are 70∘ and 50∘ and all the remaining interior angles are equal to x∘ then this hexagon is a concave polygon.
True
False
- 360 degrees
- 280 degrees
- 24 degrees
- 156 degrees
What can you say about the angle sum of a convex polygon with number of sides 7
- 900o
- 980o
- 1080o
- 720o
If the sum of the interior angles of a convex polygon is (4 x 180o). What kind of polygon is it?
Hexagon
Pentagon
Quadrilateral
Triangle
(a) Is it possible to have a regular polygon with measure of each exterior angle as 22∘?
- 24 degrees
- 156 degrees
- 360 degrees
- 280 degrees
A polygon is said to be a concave polygon if
atleast one angle is less than 360°
atleast one angle is greater than 180°
atleast one angle is greater than 90°
each angle is greater than 90°
- Convex Polygon
- Concave Polygon
- Regular Polygon
- Irregular Polygon
(B) The diagonals bisect each other.
(C) Only one pair of opposite angles is equal.
(D) All the four sides are equal.
Which one of these is false for a kite?
- The diagonals are perpendicular to each other
- The diagonals bisect each other.
- Only one pair of opposite angles is equal.
- All the four sides are equal
- rhombus
- square
- kite
- rectangle
- 12
- 10
- 8
- 15
A polygon having eight sides, is called:
Octagon
Pentagon
Hexagon
Heptagon
is a kite a concave or convex polygon?
- 280 degrees
- 24 degrees
- 360 degrees
- 156 degrees