To measure each angle, we use a protractor. Here’s how:
1. Place the center of the protractor on the vertex (corner) of the angle.
2. Line up one side of the angle with the 0° line on the protractor.
3. Look at where the other side of the angle points — that’s the angle measure in degrees.
Let’s go through each angle:
First Angle:
- One side is along the 0° line on the right.
- The other side points to 70° on the inner scale.
→ So, this angle is
70°.
Second Angle:
- Again, one side is on the 0° line on the right.
- The other side points to 135° on the inner scale.
→ So, this angle is
135°.
Third Angle:
- One side is on the 0° line on the right.
- The other side points to 100° on the inner scale.
→ So, this angle is
100°.
All measurements are read from the inner scale because the angle opens to the left (starting from the right-side 0°).
Final Answer:
70°, 135°, 100°
Parent Tip: Review the logic above to help your child master the concept of protractor worksheet.
