## Angle is formed when two straight lines meet. The spot they meet at is called the vertex. angleAngles are measured in degrees. A few examples will show you how to measure angles: The sides of a square meet at 90 degrees: (The little square means 90 degrees) Here, the two lines meet at 30 degrees: Here's an obtuse angle of 155 degrees: Now, here's a problem for you: What angle do these lines meet at? Hint: It's half of the 90 degree angle! |