Angles
Angles are always measured in degrees.
270 degrees is the same angle as a 3/4 turn of a circle.
Clockwise is going in the same direction as the clock moves.
An obtuse angle can measure more than 179 degrees.
All angles can be measured by using a circle to help you.
A straight angle is the largest single angle.
An acute angle measures less than 90 degrees.
A right angle measures more than 90 degrees.
a 1/4 turn of a circle is the same angle measure as a right angle of 90 degrees.
A 1/2 turn of a circle is the same as a straight angle.