 A 45 degree angle is known as an acute angle.

# Shapes - Angles 2

This Math quiz is called 'Shapes - Angles 2' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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Can you tell an acute angle from an obtuse angle? Do you know how many degrees there are in a circle or in a triangle? Are you familiar with the angles of a regular pentagon or a regular hexagon?

Play this quiz to gain an acute knowledge of angles.

1.
The angle in the picture below is a(n) .......
acute angle
obtuse angle
reflex angle
right angle
Acute angles are less than 90o
2.
What is 'angle A' in the regular pentagon below?
80o
88o
92o
108o
All angles in a regular pentagon are the same. (The length of the sides are also the same)
3.
The angle in the picture below is a(n) .......
acute angle
obtuse angle
reflex angle
right angle
Right angles are exactly 90o
4.
What is 'angle A' in the diagram below?
80o
100o
120o
140o
The angles on a straight line add up to 180o
5.
The angle in the picture below is a(n) .......
acute angle
obtuse angle
reflex angle
right angle
Reflex angles are between 180o and 360o
6.
What is 'angle A' in the regular hexagon below?
80o
120o
180o
240o
Remember that all the angles in a regular hexagon are the same and all the lengths of the sides are the same
7.
What is 'angle A' in the diagram below?
55o
65o
75o
85o
90o + 195o + 75o = 360o
8.
What is 'angle A' in the equilateral triangle below?
50o
60o
70o
80o
The angles in a triangle add up to 180o
9.
The angle in the picture below is a(n) .......
acute angle
obtuse angle
reflex angle
right angle
Obtuse angles are between 90o and 180o
10.
What is 'angle A' in the diagram below?
90o
180o
210o
270o
The angles in a circle add up to 360o
Author:  Frank Evans