Date post: | 04-Dec-2014 |
Category: |
Documents |
Upload: | kungfumath |
View: | 1,142 times |
Download: | 3 times |
• angle as an amount of turning
• identifying angles in 2-D and 3-D objects
• identifying angles in 2-D figures
• identifying right angles, angles greater than/ smaller than a right angle.
What will we learn today?
Geometry Basic Angles
Angles
An angle measures the amount of turn
There are different names for different angles.
As the angle increases, the name changes.
Extra information
Type of Angle Description
Not required to memorize as they are not in the syllabus.
Acute Angle an angle that is less than 90°
Right Angle an angle that is 90° exactly
Obtuse Angle an angle that is greater than 90° but less than 180°
Straight Angle an angle that is 180° exactly
Reflex Angle an angle that is greater than 180°