What It Means to You What It Means to You

Write and solve equations using
geometry concepts, including
the sum of the angles in a
triangle, and angle relationships.
What It Means to You
You will learn about supplementary, complementary, vertical,
and adjacent angles. You will solve simple equations to find the
measure of an unknown angle in a figure.
Key Vocabulary
UNPACKING EXAMPLE 7.11.C
supplementary angles
(ángulos suplementarios)
Two angles whose measures
have a sum of 180°.
Line n‖ line p. Find the measure of angle 2.
complementary angles
(ángulos complementarios)
Two angles whose measures
add to 90°.
vertical angles (ángulos
opuestos por el vértice)
A pair of opposite congruent
angles formed by intersecting
lines.
7.12.A
Compare two groups of numeric
data using comparative dot
plots or box plots by comparing
their shapes, centers, and
spreads.
Corresponding angles are congruent.
7
m∠1 = 55°
55°
p
Adjacent angles formed by two
intersecting lines are supplementary.
m∠1 + m∠2 = 180°
4
n
1
6
5
3
2
55° + m∠2 = 180° Substitute.
m∠2 = 180° - 55°
= 125°
What It Means to You
You will compare two groups of data using dot plots or box plots.
UNPACKING EXAMPLE 7.12.A
The box-and-whisker plots show the distribution of the number of
fish caught per trip by two fishing charters.
= Reel-to-Reel
Charters
20
30
40
50
60
70
Number of fish
80
= Mud Puppy
Charters
Which fishing charter appears to be more predictable in the
number of fish that might be caught on a fishing trip?
Mud Puppy Charters
24
Grade 7 Unpacking the TEKS
© Houghton Mifflin Harcourt Publishing Company
7.11.C