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
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