Recognizing special right triangles in geometry can help you to answer some questions quicker.

There are two types of special right triangles and they have the following properties:

**45 ^{°}-45^{°}-90^{°} triangle**

In this triangle, the important thing to remember is that the legs have equal length.

Formula: **Hypotenuse** = **√(2)**×(Leg)

**30 ^{°}-60^{°}-90^{°} triangle**

Formulas

**Long Leg** = (√3) × (**Short Leg**)

**Hypotenuse** = 2. **short leg**

*You can also use the Pythagorean theorem, but if you can see that it is a special triangle it can save you some calculations.*

**What follows is a PowerPoint presentation that will help you understand the content of the lesson in a better and easier way**, (*pps*).