Angles of a Triangle

Front

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

Back

180 degrees

Front

Can a triangle be formed with side lengths 17, 9, and 30?

Back

No

Front

Which angle measurements can create a triangle?

Back

90, 45, 45

Front

If two angles of a triangle are 30 and 70 degrees, what is the measure of the third angle?

Back

80 degrees

Front

Can the sides of a triangle have lengths 4, 11, and 13?

Back

Yes

Front

What is the definition of a triangle?

Back

A polygon with three edges and three vertices.

Front

What is the Triangle Inequality Theorem?

Back

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

What are the types of triangles based on their angles?

Back

Acute, right, and obtuse triangles.

Front

What are the types of triangles based on their sides?

Back

Equilateral, isosceles, and scalene triangles.

Front

What is an equilateral triangle?

Back

A triangle in which all three sides are of equal length.