Download Protractors

NAME
DATE
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
Protractors
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
T-31
NAME
DATE
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
Clocks
T-32
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
DATE
NAME
Angle Measures Are Additive
60°
75°
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
40°
50°
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
T-33
NAME
DATE
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
Large Fractions
T-34
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
NAME
DATE
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
Circles
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
T-35
DATE
NAME
Angles and Clocks
REMINDER
There are 360° in a full turn.
1. In 5 minutes, a minute hand turns from 12 to 1.
a) What fraction of 360° did the minute hand turn?
b) By what angle did the minute hand turn? c) By what angle does the minute hand turn in 10 minutes? d) By what angle does the minute hand turn in 1 minute? e) 1 min = 60 s. By what angle does the minute hand turn in 10 seconds? f) How many 10-second periods are in 5 minutes? g) How many degrees does the minute hand turn in 5 minutes? h) Are your answers in parts b) and g) the same? If not, find your mistake.
2. a)Use a ruler to extend the clock hands.
Then measure the angle between the hands.
b) Compare the angle you found to the angle in Question 1 b).
How are the angles the same? How are the angles different? c) Find the angles made by the hands of the clock without measuring!
3. An hour hand moves from 12 to 1 in 60 minutes.
a) By what angle does an hour hand turn in 60 minutes? °
b) By what angle does an hour hand turn in 12 minutes? c) By what angle does a minute hand turn in 12 minutes?
Hint: Use your answer to Question 1 c). d) Find the angle between the hands at 12:12. T-36
Extend the hands in the picture and measure the angle to check your answer.
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
i)ii)iii)BONUS
DATE
NAME
Reflexive Angles as Fractions of a Circle
1.a)
b)
What fraction of the circle is shaded?
What is the angle?
4
5
of 360° = c)
What is the angle?
of 360° = d)
What fraction of the circle is shaded?
What is the angle?
What fraction of the circle is shaded?
of 360° = e)
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
What fraction of the circle is shaded?
What is the angle?
of 360° = f)
What fraction of the circle is shaded?
What is the angle?
of 360° = g)
What fraction of the circle is shaded?
What is the angle?
of 360° = h)
What fraction of the circle is shaded?
What is the angle?
of 360° = What fraction of the circle is shaded?
What is the angle?
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
of 360° = T-37
NAME
DATE
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
Triangles for Sorting
T-38
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
DATE
NAME
Sorting Polygons
E
A
B
C
F
D
G
K
I
H
L
J
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
Property
Shapes with
Property
Property
No parallel sides
No perpendicular sides
One pair of parallel sides
One pair of perpendicular sides
Two pairs of parallel sides
Two pairs of perpendicular sides
More than two pairs
of parallel sides
More than two pairs
of perpendicular sides
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
Shapes with
Property
T-39
DATE
NAME
Perpendicular Line Through a Point
1. a) Trace the lines that are perpendicular to the thick line in red.
b) Trace the lines that pass through point P in blue.
c) Mark the lines that are perpendicular to the thick line and pass through the point P with an “ ”.
i)
ii)
P
P
To draw a line perpendicular to the thick line though point P:
Step 1 Align the line from the
origin to the 90° mark with the thick line.
P
Step 2 Without turning the
protractor, move it so that the
straight side of the protractor
touches the point P.
Step 3 Draw a straight line
through P using the straight
side of protractor as a ruler.
P
P
2. Draw a line perpendicular to the given line that passes through P.
a)
b)
P
c)
T-40
d)
P
P
Blackline Master — Geometry — Teacher’s Guide for AP Book 4.2
COPYRIGHT © 2013 JUMP MATH: TO BE COPIED. CC EDITION
P