Measuring angles using a Protractor Worksheets|Grade 5 - Free Printable

To solve the problem of measuring the angles in the provided worksheet, you need to use a protractor. Here’s a step-by-step explanation of how to measure each angle:

Steps to Measure Angles Using a Protractor:

1. Identify the Vertex: The vertex is the point where the two rays of the angle meet.
2. Align the Protractor: Place the center of the protractor exactly on the vertex of the angle.
3. Align One Ray: Align one ray of the angle with the zero line of the protractor (the straight line that goes through 0°).
4. Read the Angle: Look at the other ray and see where it crosses the protractor scale. Read the angle from the scale.

Solution for Each Angle:

Since I cannot physically measure the angles using a protractor, I will provide general guidance on how to approach each angle. You should measure them yourself using a protractor.

#### Angle 1:
- This appears to be an obtuse angle (greater than 90° but less than 180°). Use the outer scale of the protractor to measure it.

#### Angle 2:
- This appears to be an acute angle (less than 90°). Use the inner scale of the protractor to measure it.

#### Angle 3:
- This appears to be an obtuse angle. Use the outer scale of the protractor to measure it.

#### Angle 4:
- This appears to be a right angle (exactly 90°). No measurement needed; write 90°.

#### Angle 5:
- This appears to be an acute angle. Use the inner scale of the protractor to measure it.

#### Angle 6:
- This appears to be an obtuse angle. Use the outer scale of the protractor to measure it.

#### Angle 7:
- This appears to be an obtuse angle. Use the outer scale of the protractor to measure it.

#### Angle 8:
- This appears to be an acute angle. Use the inner scale of the protractor to measure it.

#### Angle 9:
- This appears to be an acute angle. Use the inner scale of the protractor to measure it.

#### Angle 10:
- This appears to be an obtuse angle. Use the outer scale of the protractor to measure it.

#### Angle 11:
- This appears to be a right angle (exactly 90°). No measurement needed; write 90°.

#### Angle 12:
- This appears to be an acute angle. Use the inner scale of the protractor to measure it.

Final Answer:

After measuring each angle with a protractor, you should write the measured values in the respective boxes. Since I cannot measure them here, the final answer format would look like this:

\[
\boxed{
\begin{array}{ccc}
1. & \text{(Measured value)}^\circ & 9. & \text{(Measured value)}^\circ \\
2. & \text{(Measured value)}^\circ & 10. & \text{(Measured value)}^\circ \\
3. & \text{(Measured value)}^\circ & 11. & 90^\circ \\
4. & 90^\circ & 12. & \text{(Measured value)}^\circ \\
5. & \text{(Measured value)}^\circ & & \\
6. & \text{(Measured value)}^\circ & & \\
7. & \text{(Measured value)}^\circ & & \\
8. & \text{(Measured value)}^\circ & & \\
\end{array}
}
\]

Replace the placeholders with the actual measured values.