Geometry Midterm Review

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 also equal.

Front

How do you find the value of x in a triangle with angles expressed as algebraic expressions?

Back

Set up the equation based on the triangle angle sum theorem, which states that the sum of the angles in a triangle is 180 degrees.

Front

What is the inverse of the statement: If p, then q?

Back

If ~ (not) p, then ~ (not) q.

Front

What is the triangle angle sum theorem?

Back

The triangle angle sum theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Front

How can you determine if a triangle is scalene?

Back

A scalene triangle has all sides of different lengths and all angles of different measures.

Front

What is the definition of a right triangle?

Back

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

Front

What is the definition of 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, each measuring 60 degrees.

Front

How do you find the length of the sides of a triangle given two sides?

Back

Use the Pythagorean theorem if it's a right triangle, or apply the triangle inequality theorem for other types.

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

What does it mean for angles to be complementary?

Back

Two angles are complementary if the sum of their measures is 90 degrees.