Angles measure the amount of turn, or change of direction.
Angles are measured in degrees. A number that is a degree has a small º immediately after the number: 153º means 153 degrees. There are 360º in a complete turn. Half a turn is 180º, and a quarter turn is 90º.
In geometry, angles are seen when two lines join at a point.
Angles have names, depending on the amount of turn in the angle.
1. Four angles of the same type make up the inside angles of a square. What is the name of that type of angle?
Answer: A Right Angle
A square consists of 4 equal angles. Each angle is 90º. An angle of 90º is known as a right angle.
2. I have an angle of 88º. What type of angle, or angles, could it be?
a) Acute Angle b) Span Angle c) Right Angle d) Square Angle
Answer: a) Acute Angle
An Acute Angles is greater than 0º and less than 90º.