Types of angles activity

Types of angles

Acute angle

Definition
An angle whose measure is less than 90^o.

Obtuse angle

Definition
An angle whose measure is more than 90^o and less than 180^o.

Right angle

Definition
An angle whose measure is equal to 90^o.

Straight angle

Definition
An angle whose measure is equal to 180^o.

Reflex angle

Definition
An angle whose measure is more than 1800^o and less than 360^o.

Suggested Activities

Activity 1

After learning the types of angles, try to make different types of angles using your body parts.

• 

  showing an acute angle

• 

  showing an acute angle

• 

  showing an obtuse angle

• 

  showing a right angle

Activity 2

Work in progress, expect frequent changes. Help and feedback is welcome. See discussion page.