Name the 4 types of angles that we learned about.
Acute, Right, Obtuse, Straight
What do you know about vertical angles?
Vertical Angles are Congruent.
Define complementary angles.
TWO angles that add up to 90 degrees.
What is the measure of angle BLA?
m angle BLA = 168^@
Given a ray bisects a 120 degree angle, what does each smaller angle measure?
60 degrees.
How is a ray named?
by its endpoint first, then by any point on the extended side
What is the difference numerically between acute angles and obtuse angles?
Acute angles are between 0-90 and Obtuse angles are between 90-180.
Define linear pair.
Two ADJACENT ANGLES angles that form a straight angle / are supplementary.
What is the difference between complementary and supplementary angles?
Complementary angles add up to 90 degrees and supplementary angles add up 180 degrees.
What is the measure of segment AB?
AB = 11
Ray QT bisects Angle AQB. If angle AQT measures 32, what does angle AQB measure?
64 degrees.
Draw two rays that share an endpoint?
see paper
Draw an acute angle on your paper and name it.
see drawing
What is the angle relationship between x and 50? What is the angle relationship between 50 and y?
x are 50 vertical angles
50 and y are a linear pair
The two angles below are complementary. Solve for x.
x = 56
Solve for x.
x = 8
Given a pair of supplementary angles, if one angle measures 45, what does its supplement measure?
135 degrees.
Name the line and a line segment below:
see paper
Name the largest angle.
angle ABD or angle DBA
Solve for x and y.
x = 50
y = 130
The two angles below are supplementary. Solve for b.
95^@
Find LM.
LM=7
Given angle RST is 22, what is the measure of its complement?
68 degrees.
Name two rays in the image below
Answers may vary:
Ray BA
Ray BC
Ray BD
Name an acute, right, obtuse, and straight angle in the angle below.
Acute: angle SEU
Right: angle SEN
Obtuse: angle UET
Straight: angle SET
Solve for x.
42
Solve for x and the measure of angle CBD
x = 9 and angle CBD = 54
Angle ABD is 121 degrees. Solve for x and the measure of angle ABC.
x = 18 and angle ABC = 74
Given angle ABC and RBS are vertical angles. If m <ABC = 5x + 12 and m<RBS = 7x - 8. Find the value of x.
x = 10