Angles of Triangles

Front

What are the three types of triangles based on angles?

Back

Acute, Right, Obtuse.

Front

What are the three types of triangles based on sides?

Back

Equilateral, Isosceles, Scalene.

Front

How do you classify a triangle with one angle greater than 90 degrees?

Back

It is classified as an Obtuse triangle.

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

What is an exterior angle of a triangle?

Back

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

Front

How do you find the measure of an exterior angle?

Back

The measure of an exterior angle is equal to the sum of the measures of the two non-adjacent interior angles.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle with all sides of different lengths.

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all angles are less than 90 degrees.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle equal to 90 degrees.

Front

How do you solve for a missing angle in a triangle?

Back

Subtract the sum of the known angles from 180 degrees.