Classifying Triangles, Angle Sum & Exterior Angles - Modified

Front

What are the three types of triangles based on their sides?

Back

Scalene, Isosceles, Equilateral.

Front

Define a scalene triangle.

Back

A scalene triangle is a triangle in which all three sides are of different lengths.

Front

Define an isosceles triangle.

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

Define an equilateral triangle.

Back

An equilateral triangle is a triangle in which all three sides are of equal length.

Front

What is the angle sum property of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What is an exterior angle of a triangle?

Back

An exterior angle is formed by one side of a triangle and the extension of an adjacent side.

Front

State the relationship between an exterior angle and the two opposite interior angles.

Back

The exterior angle is equal to the sum of the two opposite interior angles.

Front

How do you find the measure of an unknown angle in a triangle?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is the formula to find the measure of an exterior angle?

Back

Exterior angle = Interior angle 1 + Interior angle 2.

Front

What is the equation to solve for x in the context of triangle problems?

Back

It varies based on the problem, but often involves setting up an equation based on angle measures or side lengths.