Geometry Midterm REVIEW

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What does the vertical angles theorem state?

Back

Front

How do you find the missing angle measure if two angles are complementary?

Back

If one angle is known, subtract it from 90 degrees to find the missing angle.

Front

What is the formula for finding the midpoint between two points (x1, y1) and (x2, y2)?

Back

Midpoint = ( (x1 + x2)/2 , (y1 + y2)/2 )

Front

Calculate the midpoint between (3, -1) and (7, -5).

Back

(5, -3) is the midpoint.

Front

What is the definition of a linear pair of angles?

Back

A linear pair of angles are two adjacent angles that form a straight line, adding up to 180 degrees.

Front

What is the weighted average formula?

Back

Weighted Average = (Σ(weight * value)) / Σ(weight) where weight is the importance of each value.

Front

Find the weighted average of the coordinates -3 (weight 2) and 4 (weight 5).

Back

The weighted average is 2.

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 the Pythagorean theorem?

Back