Angles

A right angle measures

• 91 degrees

• Exactly 90 degrees

• Somewhere between 80 and 90 degrees

• 91 degrees

An acute angle measures

• It can be anything

• 90 degrees

• Less than 90 degrees

• Between 90 degrees and 180 degrees

An obtuse angle measures

• More than 90 degrees but less than 180 degrees

• More than 90 degrees

• Exactly 180 degrees

• Exactly 90 degrees

A straight angle can measure 181 degrees

• True

• False

If I had an angle that measured 90 degrees what angle would it be?

• Acute

• Obtuse

• Right

• Left

If I had an angle that measured 125 degrees. What angle would it be?

(a)  

An angle measures 89 degrees. What angle would it be?

(a)  

Sally measures an angle with her protractor. It reads that the angle is 91 degrees. She says it's a right angle. Do you agree?

• Yes

• No

An acute angle is bigger than a right angle

• True

• False

A obtuse angle is bigger than a right angle

• True

• False