Estimating Angle Size
You will be working with five types of angle.
An acute angle is less than 90º
A right angle is 90º
An obtuse angle is between 91º and 179º
A straight angle is 180º
A reflex angle is between 181º and 360º
Remember - You can fit a square exactly into a right angle.
You are given a choice of three answers. Use the information above to help you when you estimate the size of the angle.