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Polygons Grade 9

Total questions: 20

Worksheet time: 37mins

Name
Class
Date
1.
What is the sum of the exterior angles of a 20-gon?
a)
180
b)
360
c)
3240
d)
162
2.
Find the value of x
a)
87°
b)
54°
c)
101°
d)
92°
3.
Find the value of X.
a)
60
b)
120
c)
85
d)
55
4.
Three of the angles in a quadrilateral have a sum of 252o.  What is the measure of the fourth angle?
a)
108o
b)
360o
c)
72o
d)
56o
5.

The shape shown is a square. Why could it also be considered a rhombus?

a)

It has 4 right angles.

b)

It has 4 congruent sides.

c)

There are no parallel sides.

d)

There are no perpendicular lines.

6.

A triangle with one right angle and two congruent sides would be?

a)

Right Obtuse Triangle

b)

Right Scalene Triangle

c)

Right Isosceles Triangle

d)

Right Equilateral Triangle

7.

Is the hexagon shown, a regular hexagon?

a)

Regular Hexagon

b)

Irregular Hexagon

8.

Which of the following is not a quadrilateral?

a)
b)
c)
d)
9.

What polygon has 6 sides and 6 vertices?

a)

Hexagon

b)

Octagon

c)

Triangle

d)

Rectangle

10.

What polygon has 5 sides and 5 vertices?

a)

Pentagon

b)

Hexagon

c)

Octagon

d)

Quadrilateral

11.

I have 8 sides and 8 vertices. Who am I?

a)

Hexagon

b)

Square

c)

Triangle

d)

Octagon

12.
How many sides do I have?
a)
3
b)
4
c)
6
d)
5
13.

What polygon has 3 sides and 3 vertices?

a)

Octagon

b)

Triangle

c)

Quadrilateral

d)

Hexagon

14.
How many vertices do I have?
a)
6
b)
7
c)
8
d)
5
15.

What polygon has 4 sides and 4 vertices?

a)

Hexagon

b)

Octagon

c)

Quadrilateral

d)

Triangle

16.
I am made of two ________.
a)
quadrilaterals
b)
triangles
17.
I am made of two _________.
a)
Triangles
b)
Rectangles
c)
Pentagons
d)
Squares
18.

What is a polygon?

a)

A closed shaped with only straight sides

b)

A closed shape with curved sides

19.
Convex or Concave?
a)
convex
b)
concave
20.
Is the figure a polygon? Is it convex or concave?
a)
Not a polygon, convex
b)
Polygon, convex
c)
Not a polygon
d)
Polygon, concave

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