# MA.912.G.5.4 Right Triangle Properties

## Trig & Discrete Math

Section 8-1; 531-539
Section 8-2; 541-549
Section 8-3; 522-560
Section 8-4; 562-571
Section 8-5; 574-581

## What You Need To Know...

Properties of right triangles.

1. The benchmark will be assessed using MC (Multiple Choice) and FR (Fill in Response) items.
2. Items may require the use of the Pythagorean Theorem, special right triangles, and relationships involving an altitude drawn to the hypotenuse of a right triangle.
3. Items may require the use of the geometric mean.
4. Radical expressions in multiple choice options will be in simplified or rationalized form.

## Example One

In ABC, is an altitude. What is the length, in units, of ? ## Example Two

Nara created two right triangles.  She started with JKL and drew an altitude from point K to side JL.  The diagram below shows JKL  and some of its measurements, in centimeters (cm). Based on the information in the diagram, what is the measure of x to the nearest tenth of a centimeter?  Pythagorean Theorem 