Semester 1 Final Study Guide

Front

What is an angle with a measure between 90° and 180°?

Back

Obtuse angle

Front

What is the result of reflecting the point (9,1) across the y-axis?

Back

(-9,1)

Front

If angle X and angle Y form a linear pair, and angle X is 124 degrees, what is angle Y?

Back

56 degrees

Front

How do you find the midpoint of the segment with endpoints (6, 7) and (6, -5)?

Back

(6, 1)

Front

What is defined as an infinite number of points and lines on a flat surface that extends without end and has no thickness?

Back

Plane

Front

What is the definition of an acute angle?

Back

An angle that measures less than 90°.

Front

What is the definition of a right angle?

Back

An angle that measures exactly 90°.

Front

What is the definition of a straight angle?

Back

An angle that measures exactly 180°.

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

What is the definition of a line segment?

Back

A part of a line that has two endpoints.