# Analyzing Angles

There are three general rules that apply to the ACT:

1. No negative angles exist

2. No zero angles exist

3. You're extremly unlikely to see any fractional angles

-Angles that are greater than 0 but less than 90 degress are called acute angles

-Angles that are equal to 90 degress are called right angles

Secret: Don't automatically assume that angles that look like right angles are right angles. Without calculating the degree of the angle, you can't know for certain that an agle is a right angle unless one of the following is true

- The problem directly tells you "this is a right angle"

-You see a perpendicular symbol indicating that the lines form a 90 degree angle

-You see a box in the angle.