Remember: Put the baseline along zero. Start at zero and read the mark where the second ray crosses, counting the small marks past the last number.
Read the degrees
1
The baseline lies along zero. How many degrees is the angle?
2
Is the angle acute, right or obtuse?
acuteobtuseright
3
Count the small marks. How many degrees is this angle?
4
The ray points at a number. How many degrees is this angle?
5
Use the protractor. What kind of angle is this?
obtuserightacute
6
The ray is one small mark past 150. How many degrees is this angle?
7
This angle measures 110 degrees.
TrueFalse
Judge and compare angles
8
Which angle measures about 60 degrees?
ABC
9
Which angle measures more than 90 degrees?
ABC
10
How many more degrees is the first angle than the second angle?
11
A 60 degree angle and a 40 degree angle are put side by side. How many degrees in all?
12
Put the angles in order from the smallest to the biggest.
C
D
B
A
13
Draw an angle that measures 130 degrees. Use a protractor.
14
Write how you know an angle of 130 degrees is obtuse.
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