Unit 3 · Test
Unit 3 test: Parallel and Perpendicular Lines
15 questions. Answer them all, then submit to see your score. Solutions unlock after you submit.
This test covers angle pairs formed by a transversal, proving lines parallel, slopes of parallel and perpendicular lines, and writing equations of parallel and perpendicular lines.
Problems 1–7 use this diagram, in which lines and are cut by transversal . Assume only when a problem says so.
What kind of angle pair are and ?
Given and , find , in degrees.
Enter a number. Fractions like 3/4 and sqrt(2) are OK.
Given , and . Find , in degrees.
Enter a number. Fractions like 3/4 and sqrt(2) are OK.
Given , and . Find , in degrees.
Enter a number. Fractions like 3/4 and sqrt(2) are OK.
If , which reason justifies the conclusion ?
Suppose and . What value of makes ?
Enter a number. Fractions like 3/4 and sqrt(2) are OK.
Suppose and . What can you conclude?
Lines , , and lie in one plane, with , and . Which statement must be true?
What is the slope of a line perpendicular to ?
Enter a number. Fractions like 3/4 and sqrt(2) are OK.
Line passes through and . Line passes through and . Classify the lines.
The line through and is parallel to . Find .
Enter a number. Fractions like 3/4 and sqrt(2) are OK.
Write an equation of the line through that is parallel to . (You can type the whole equation or just the right side of .)
Enter an expression, e.g. 3x^2 - 2x + 1
Write an equation of the line through that is perpendicular to .
Enter an expression, e.g. 3x^2 - 2x + 1
Write an equation of the perpendicular bisector of the segment with endpoints and .
Enter an expression, e.g. 3x^2 - 2x + 1
Find the distance from the point to the line . Give an exact answer or round to the nearest hundredth.
Enter a number. Fractions like 3/4 and sqrt(2) are OK.