Matching

Match the measurement of each angle to the name that describes that angle

100°

|

right angle

90°

|

straight angle

180°

X

|

acute angle

80°

obtuse angle

A right angle is 90 degrees.

A straight angle is 180 degrees because it is just a straight line.

An acute angle can be 80 degrees - it is any angle that is less than 90 degrees.

An obtuse angle can be 100 degrees, as it is any angle over 90 degrees.