Relationships in Triangles Review

Front

What is the Triangle Inequality Theorem?

Back

The Triangle Inequality Theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

Will side lengths of 9, 11, 7 make a triangle?

Back

Yes

Front

What is the measure of angle X if the triangle has angles of 60, 40, and X?

Back

60

Front

What is the measure of angle a if the triangle has angles of 50, 80, and a?

Back

80

Front

Can a triangle be formed with side lengths: 10, 22, 12?

Back

No

Front

List the angles of the triangle in order from smallest to largest if the angles are L, N, and M.

Back

Front

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

Back

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

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are of equal length and all three angles are equal to 60 degrees.

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length and the angles opposite those sides are equal.

Front

What is a scalene triangle?

Back

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