Directions

​Your best effort here= Effort on test

This study guide will walk you through how to do a problem, then a problem to see how much you retained. You are expected to both USE your notes and take notes. If you'd like EXTRA CREDIT, I will expect to see notes.

Happy studying!

Recall that the Pythagorean Theorem is a formula that applies only to right triangles.
a² + b²= c²
You can model it with Squares.

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Pythagorean Theorem

Classifying a Right Triangle

Applying the Pythagorean Theorem

Recall that you can determine if a triangle is a right triangle using the Pythagorean Theorem's converse:
If a²+b²=c², then the triangle is a right triangle.
Step 1: Square the legs of the triangle (the two smallest lengths)
Step 2: Add the squares of the legs
Step 3: Square the hypotenuse (the longest length)
Step 4: Compare Step 2 and Step 3, if the same value then it is a right triangle, if not-- then it still could be a triangle but it isn't a right triangle.

Recall that you can find the distance between two points on a coordinate plane by creating a right triangle and solving for c, the hypotenuse.​

​Finding distance

Recall that parallel lines cut by a transversal form angles and those angles are in relationship to each other. The pairs are detailed in the image ​

Angle Pair Relationships

Exterior Angle Theorem

Recall that you can find an exterior angle using the theorem below.

Triangles with two corresponding angles that are equal are similar triangles.

Angle-Angle