Presentation Transcript
Slide 1:What's Your
Angle?
Slide 3:There are four types of angles: A right angle, an acute angle, an obtuse angle and a straight angle: This is a right angle. It measures 90º. This is a straight angle. It measures 180º This is an acute angle.It measures less than 90º This is an obtuse angle. It measures more than 90º
Slide 4:This is a protractor. it is used to measure angles. This protractor shows that a right angle measures 90º.
Slide 5:Can you identify an angle? obtuse acute
Slide 6:straight right acute
Slide 7:Which type of angles
are in the shape below? right angles
Slide 8:Which type of angles
are in the shape below? obtuse angles
Slide 9:Which type of angles
are in the shape below? right angles
Slide 10:Which type of angles
are in the shape below? obtuse angles
Slide 11:Which type of angles
are in the shape below? acute angles
Slide 12:Which type of angle is highlighted
in bright blue on the house? acute angle
Slide 13:Which type of angle is highlighted
in bright blue on the house? obtuse
angle
Slide 14:Which type of angle is highlighted
in bright blue on the house? right
angle
Slide 15:Which type of angle is highlighted
in bright blue on the house? obtuse
angle
Slide 16:Which type of angle is highlighted
in bright blue on the house? acute
angle