Chapter 1 Review

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

How do you find the midpoint between two points (x1, y1) and (x2, y2)?

Back

The midpoint M is calculated using the formula M = ((x1 + x2)/2, (y1 + y2)/2).

Front

What is a regular polygon?

Back

A regular polygon is a polygon with all sides and all angles equal.

Front

What is an irregular polygon?

Back

An irregular polygon is a polygon that does not have all sides and angles equal.

Front

If point T is between points U and S, how do you express the relationship of their distances?

Back

The distances can be expressed as ST + TU = SU.

Front

What is the equation to solve for x if ST=7x, SU=13x-7, and TU=5x-3?

Back

The correct equation is 5x - 3 + 7x = 13x - 7.

Front

How do you find the length of a segment if you know the lengths of its two parts?

Back

The length of the segment is the sum of the lengths of its parts.

Front

What is the formula for the length of segment PR if Q is the midpoint?

Back

If PQ = 6x - 7 and QR = 5x + 1, then PR = PQ + QR.

Front

What is the value of x if PQ = 6x - 7 and QR = 5x + 1?

Back

Set the equation PQ + QR = PR and solve for x.

Front

What is the sum of the interior angles of a polygon with n sides?

Back

The sum of the interior angles is (n - 2) * 180 degrees.