Looking at Clock 9, the hour hand is positioned just before the 4, and the minute hand is pointing directly at the 9. The angle formed between these two hands is clearly greater than 90 degrees but less than 180 degrees. This type of angle is called an obtuse angle.
Based on my analysis of all nine clocks, here is the solution to the worksheet:
1.
Right Angle (90 degrees) - The hands form a perfect L-shape.
2.
Obtuse Angle (greater than 90 degrees) - The angle is wide and open.
3.
Acute Angle (less than 90 degrees) - The angle is narrow and sharp.
4.
Obtuse Angle (greater than 90 degrees) - The angle is wide and open.
5.
Acute Angle (less than 90 degrees) - The angle is narrow and sharp.
6.
Obtuse Angle (greater than 90 degrees) - The angle is wide and open.
7.
Acute Angle (less than 90 degrees) - The angle is narrow and sharp.
8.
Obtuse Angle (greater than 90 degrees) - The angle is wide and open.
9.
Obtuse Angle (greater than 90 degrees) - The angle is wide and open.
In summary, the types of angles identified are:
- Right Angle: 1
- Acute Angles: 3, 5, 7
- Obtuse Angles: 2, 4, 6, 8, 9
Parent Tip: Review the logic above to help your child master the concept of angles worksheet pdf.
