19 questions
What type of angle measures LESS than 90 degrees?
an acute angle
an obtuse angle
a right angle
a straight angle
What type of angle measures MORE than 90 degrees, but not 180 degrees?
an acute angle
an obtuse angle
a right angle
a straight angle
What type of angle measures EXACTLY 90 degrees?
an acute angle
an obtuse angle
a right angle
a straight angle
What type of angle measures EXACTLY 180 degrees?
an acute angle
an obtuse angle
a right angle
a straight angle
What is the measurement of this angle?
A
B
C
D
What is the measurement of this angle?
A
B
C
D
A polygon has to be ____________.
closed
open
angles
Some attributes of a polygon are that they have to be (a) , (b) and (c) .
A quadrilateral has 4 sides.
False
True
A triangle has ____ sides.
3
5
4
Which of the following is NOT a quadrilateral?
An hexagon has (a) sides.
This polygon is an example of a __________.
hexagon
heptagon
pentagon
A decagon has _____ sides.
5
9
10
Which of the following shapes are not polygons?