Interior Angles of a Triangle

Congratulations!

You have come to the end of this WebQuest.

I hope that you had fun learning about the interior angles of a triangle. This investigative lesson has shown us two very important facts about the angles of a triangle. We know that:

1. The sum of the interior angles of any triangle equals 180.
2. An unknown angle can be found using the Triangle Angle Sum Theorem by writing an equation where in  the sum of the three angles equals 180 and the unknown angle being represented by the variable. Subsequently, solve for the measurement of the missing angle.

Looking Ahead

You can now go ahead to investigate the Sum of the Three Exterior angles of a Triangle and the Exterior Angles of a Triangle