1. READ THIS SLIDE FIRST(This is a hidden slide and will not appear in the slide show) This presentation requires Microsoft Mouse Mischief. Mouse Mischief lets students use computer mice to answer questions and participate in activities teachers create in PowerPoint presentations. To learn more, visit www.microsoft.com/mousemischief Get Microsoft Mouse Mischief 1 Download and Install Download and install the Mouse Mischief add-in. Copy and pastewww.microsoft.com/mousemischiefinto your browser window to visit the site. 2 Restart PowerPoint After installation is complete, restart PowerPoint. 3 Create Use the Mouse Mischief features on the Multiple-Mouse tab. 4 Play Slide Show To play a multiple-mouse slide show (such as this file), click the Play Slide Show button. The Microsoft® Mouse Mischief™ add-in works with Microsoft® PowerPoint® 2010 or Microsoft® Office PowerPoint® 2007.

2. Types of Angles An acute anglemeasures less than 90° An obtuse angle measures more than 90° A rightangle measures exactly 90°

3. 20° 120° 90° If this angle is acute, what could be its measurement?

4. Right Obtuse Acute Which angle do you see the most on this building?

5. Obtuse Right Acute The hour hand makes an angle with the minute hand. What kind of angle is it?

6. Draw an obtuse angle in your box. 1 2 3 5 6 4

7. Circle the obtuse angles with red, the acute angles with green, and the rightangles with blue.

8. Match each angle type with the correct drawing. Obtuse Acute Right

9. Make each line into an acuteorobtuseangle before time runs out. Obtuse Acute