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# Angles (Grade 4)

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## Angles

1.
Which TWO statements about the angle shown are true?
1. Angle ABC is acute.
2. Angle ABC is obtuse.
3. Angle ABC is less than $180deg.$
4. Angle ABC is equal to $180deg.$
5. Angle ABC is greater than $180deg.$
2.
What is the measure of angle ABC shown by the arrows?

You can use a protractor to help you find the answer.

3.
The measure of angle $ABD$ is $90deg$. The measure of angle $CBD$ is $30deg$.

Which equation can be used to find the value of angle $ABC$?
1. $ABC + 30 = 90$
2. $ABC - 30 = 90$
3. $ABC xx 30 = 90$
4. $ABC -:30 = 90$
4.
An angle is shown on the protractor.

Which statement about the angle is true?
1. The angle is obtuse.
2. The angle is equal to two 10-degree angles.
3. The angle turns through ten 1-degree angles.
4. The angle turns through $5/360$ of a circle that has a measure of 360 degrees.
5.
Which angle has a measure of $80deg$?

You can use a protractor to help you find the answer.
6.
Which TWO statements about the angles shown are true?
1. $DBC > ABC$
2. $DBC = ABC$
3. $DBC < ABC$
4. $DBC + ABC = DBA$
5. $DBC - ABC = DBA$
7.
Which THREE statements are true about the angles shown?
1. $ABC = 90deg$
2. $DBC = 90deg$
3. $DBA = 180deg$
4. $ABC = DBC$
5. $DBA = DBC + ABC$
6. $ABC = DBA - DBC$
8.
Which shows a right angle?

You may use a protractor to help you find the answer.
9.
Angle A measures $15deg$. Angle B measures $50deg$. Which statement is true about the angles?
1. Angle A turns through 15 1-degree angles.
2. Angle B turns through 50 10-degree angles.
3. Angle A turns through $15/180$ of a circle.
4. Angle B turns through $50/180$ of a circle.
10.
What is the measure of the angle shown on the protractor?

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