Angles as Turns

Answer

A full turn is when an object rotates completely around and comes back to its starting position. It makes a complete circle. Examples: a minute hand completing one full rotation on a clock, or a giant

Answer

A half turn is when an object rotates halfway around from its starting position. It is half of a full turn. After a half turn, the object faces the opposite direction from where it started.

Answer

A quarter turn is one-fourth (1/4) of a full turn. It forms a right angle. When you make a quarter turn, you rotate 90 degrees from your starting position.

Answer

A quarter turn (1/4 turn) forms a right angle. This is the angle you see at the corners of a square or rectangle.

Answer

An acute angle is formed when you make less than a quarter turn (less than 1/4 turn). It is smaller than a right angle and looks 'sharp' or 'pointed'.

Answer

An obtuse angle is formed when you make more than a quarter turn but less than a half turn (between 1/4 and 1/2 turn). It is larger than a right angle but smaller than a straight angle.

Answer

A half turn (1/2 turn) forms a straight angle. This looks like a straight line and is equal to two quarter turns or two right angles.

Answer

2 quarter turns = 1/4 + 1/4 = 2/4 = 1/2 turn. This is equivalent to a half turn and forms a straight angle.