# What is Triangle algebra?

## What is Triangle algebra?

A triangle is composed of three line segments. The line segments intersect in their endpoints. A triangle that has one right angle is called a right triangle. A triangle that has one obtuse angle is called an obtuse triangle. When a triangle has three congruent sides, we call the triangle an equilateral triangle.

### How do you tell if there are two triangles?

Once you find the value of your angle, subtract it from 180° to find the possible second angle. Add the new angle to the original angle. If their sum is less than 180°, you have two valid answers. If the sum is over 180°, then the second angle is not valid.

#### What do 2 lines on a triangle mean?

The dashes on the lines show they are equal in length. The angles at the base of the equal sides are equal. An equilateral triangle has 3 sides of equal length. The dashes on the lines show they are equal in length. When two triangles are congruent it means that they have the same size and shape.

What do you call a triangle with no equal sides?

Scalene. A scalene triangle has three different angles and none of its sides are equal in length.

What is a no triangle?

What Is “No” Triangle? There are certain criteria that if you are given you will NOT be able to create a triangle… 1.) If the sum of all the angles in the triangle do NOT equal 180°

## How does Pascal’s triangle work in Algebra 2?

In Algebra II, we can use the binomial coefficients in Pascal’s triangle to raise a polynomial to a certain power. Using Pascal triangles to expand binomial. So what we’re going to do here is introduce Pascal’s triangle but before we do that we are going to talk about exactly how these all works.

### How to calculate the third side of a triangle?

For this type of triangle, we must use The Law of Cosines first to calculate the third side of the triangle; then we can use The Law of Sines to find one of the other two angles, and finally use Angles of a Triangle to find the last angle. See Solving “SAS” Triangles . 5. SSA

#### Which is the correct equation for solving a triangle?

In your solving toolbox (along with your pen, paper and calculator) you have these 3 equations: 1. The angles always add to 180°: When you know two angles you can find the third. 2. Law of Sines (the Sine Rule): When there is an angle opposite a side, this equation comes to the rescue.

Which is the correct way to solve an AAS triangle?

See Solving “AAA” Triangles . 2. AAS This mean we are given two angles of a triangle and one side, which is not the side adjacent to the two given angles. Such a triangle can be solved by using Angles of a Triangle to find the other angle, and The Law of Sines to find each of the other two sides. See Solving “AAS” Triangles. 3. ASA