Angles

1
Angles

• Recognising different types of angles

2
What type of angle is this?

• Right angle

3
What type of angle is this?

• acute

4
What type of angle is this?

• obtuse

5
What type of angle is this?

• acute

6
What type of angle is this?

• reflex

7
What type of angle is this?

• obtuse

8
A reminder

• Right angles are 90o.
• Acute angles are less than 90o.
• Obtuse angles are more than 90o but less than
  180o.
• Reflex angles are more than 180o.

9
Our objectives

• To be able to identify, estimate, measure and
  order acute and obtuse angles.
• To improve our accuracy when using protractors.

10
Our objectives

• To be able to identify, estimate, measure and
  order acute and obtuse angles.
• To improve our accuracy when using protractors.