Chapter 5 Geometry Review

Front

What is the definition of a midpoint in geometry?

Back

A midpoint is a point that divides a line segment into two equal parts.

Front

If S is the midpoint of RU and T is the midpoint of RV, how do you find the length of ST?

Back

The length of ST can be found by calculating the distance between points S and T.

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

Given two sides of a triangle measuring 8 and 15, what is the range of possible values for the third side?

Back

7 < x < 23.

Front

What is the relationship between the angles and sides of a triangle?

Back

In a triangle, the largest angle is opposite the longest side.

Front

How do you determine which angle is the largest in a triangle?

Back

Compare the lengths of the sides opposite each angle; the largest angle is opposite the longest side.

Front

What is the definition of an angle?

Back

An angle is formed by two rays with a common endpoint, called the vertex.

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

If the angles of a triangle are ∠G, ∠H, and ∠I, how do you identify the largest angle?

Back

The largest angle can be identified by comparing the lengths of the sides opposite each angle.

Front

What does it mean for an angle to be obtuse?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.