Angles

Measuring & drawing angles

Name: ______________________________Date: ______________Score: ______ / 20

1.
What type of angle is 50°?
1. AAcute
2. BRight
3. CObtuse
4. DReflex
2.
What type of angle is 120°?
1. AAcute
2. BRight
3. CObtuse
4. DReflex
3.
What type of angle is 245°?
1. AAcute
2. BObtuse
3. CReflex
4. DRight
4.
What type of angle is exactly 90°?
1. AAcute
2. BRight
3. CObtuse
4. DReflex
5.
What type of angle is 175°?
1. AAcute
2. BReflex
3. CObtuse
4. DRight
6.
What type of angle is 350°?
1. AObtuse
2. BReflex
3. CAcute
4. DRight
7.
An acute angle is between 0° and how many degrees?
°
8.
A reflex angle is more than 180° and less than how many degrees?
°
9.
An obtuse angle is between 90° and 180°.
True False
10.
A right angle measures 100°.
True False
11.
How many degrees are there in a quarter turn?
°
12.
How many degrees are there in a half turn?
°
13.
How many degrees are there in a three-quarter turn?
°
14.
How many degrees are there in a full turn?
°
15.
When you measure an angle clockwise from 0°, which numbers on the protractor do you use?
1. AThe inside numbers
2. BThe outside numbers
3. CEither one
4. DNeither
16.
When you measure an angle anticlockwise from 0°, which numbers on the protractor do you use?
1. AThe outside numbers
2. BThe inside numbers
3. CBoth circles
4. DThe centre dot
17.
Which tool do you use to measure and draw angles?
1. AA ruler
2. BA protractor
3. CA compass
4. DA calculator
18.
Angles x and y sit next to each other on a straight line. Angle x is 142°. What is angle y?
°
19.
Two angles sit next to each other on a straight line. One is 110°. What is the other angle?
°
20.
Two angles sit next to each other on a straight line. One is 55°. What is the other angle?
°

Answer key

Angles — Measuring & drawing angles

1.A. Acute
2.C. Obtuse
3.C. Reflex
4.B. Right
5.C. Obtuse
6.B. Reflex
7.90 °
8.360 °
9.True
10.False
11.90 °
12.180 °
13.270 °
14.360 °
15.B. The outside numbers
16.B. The inside numbers
17.B. A protractor
18.38 °
19.70 °
20.125 °