Math Core

Unit 1 · Test

Unit 1 test: Foundations of Geometry

15 questions. Answer them all, then submit to see your score. Solutions unlock after you submit.

This test covers points, lines and planes, segment lengths and the distance formula, midpoints, angle measure, angle pairs and basic constructions.

Question 1

Two distinct planes intersect. Their intersection is

Question 2

Seven points lie in a plane, and no three of them are collinear. How many different lines pass through at least two of the points?

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 3

Points AA, BB and CC lie on a line in that order. Which two rays are opposite rays?

Question 4

BB is between AA and CC, with AB=3x+1AB = 3x + 1, BC=2x+4BC = 2x + 4 and AC=30AC = 30. Find ABAB.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 5

Find the distance between (−1,3)(-1, 3) and (5,11)(5, 11).

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 6

Find the midpoint of the segment joining (−3,8)(-3, 8) and (7,−2)(7, -2).

Enter a point like (2, -3)

Question 7

M(3,−2)M(3, -2) is the midpoint of AB‾\overline{AB}, and A=(−1,4)A = (-1, 4). Find the coordinates of BB.

Enter a point like (2, -3)

Question 8

MM is the midpoint of AB‾\overline{AB}, with AM=6x−4AM = 6x - 4 and MB=4x+6MB = 4x + 6. Find ABAB.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 9

BD→\overrightarrow{BD} bisects ∠ABC\angle ABC, and m∠ABD=48∘m\angle ABD = 48^\circ. How is ∠ABC\angle ABC classified?

Question 10

DD is in the interior of ∠ABC\angle ABC, with m∠ABD=(2x+5)∘m\angle ABD = (2x + 5)^\circ, m∠DBC=(4x−11)∘m\angle DBC = (4x - 11)^\circ and m∠ABC=120∘m\angle ABC = 120^\circ. Find m∠DBCm\angle DBC in degrees.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 11

Find the measure, in degrees, of the supplement of the complement of a 25∘25^\circ angle.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 12

Two vertical angles measure (6x−15)∘(6x - 15)^\circ and (4x+25)∘(4x + 25)^\circ. Find the measure of each angle in degrees.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 13

Two angles form a linear pair, and one is 44 times the other. Find the measure of the larger angle in degrees.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 14

Which construction locates the midpoint of a segment?

Question 15

In the perpendicular bisector construction for AB‾\overline{AB}, AB=10AB = 10 and the compass is set to 1313. How far apart are the two points where the arcs cross?

Enter a number. Fractions like 3/4 and sqrt(2) are OK.