Angles- Basic- Class 4/5

----------- is the unit used to measure angle.

In which of the following pictures angle is not formed?

• 
• 
• 

an acute angle is

• 90 degrees

• less than 90 degrees

• more than 90 degrees

• 180 degrees

This is what kind of angle?

• right
• acute
• obtuse
• straight

This is a/an __________ angle.

I can measure an angle with a device known as _______

Which of the following measures is an example of acute angle?

• 90^o

• 89^o

• 100^o

• 95^o

This stop sign has ________ angles.

• Right

• Acute

• Obtuse

• Straight

Define Obtuse

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

What type of angle is shown here?

• Acute

• Obtuse

• Reflex

• Right