understanding elementary shapes

How many right angles do you make if you start facing south and turn clockwise to west?

• 1

• 2

• 3

• 4

Find the number of right angles turned through by the hour hand of a clock when it goes from 3 to 6.

• 4

• 2

• 1

• 3

What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from 12 to 3?

• 1/3

• 1

• 1/2

• 1/4

What is the angle name for half a revolution?

• right angle

• straight angle

• complete angle

• reflex angle

An angle smaller than a right angle is called ————————-

• acute angle

• obtuse angle

• straight angle

• right angle