Post on 10-Aug-2020
Using a Protractor
1 2 4 5
1020
3040
5060
70 80 90 100 110120
130
140150
160170
170
160
150
140
130
120110
100 90 8070
60
50
40
3020
100
P
Q R
The protractor’s arrow and pen hole isplaced on the angle’s vertex. The 0˚ lineis placed over one side of the angle.Read the measure where the other leg ofthe angle intersects the protractor.
PQR measures 70˚.
LMN =
L
M N
ABC =
A
B C
UVW =
U
V W
GHI =
G
H IH
ANSWER KEY
135° 80°
35° 95°RB
Using a Protractor
1 2 4 5
1020
3040
5060
70 80 90 100 110120
130
140150
160170
170
160
150
140
130
120110
100 90 8070
60
50
40
3020
100
P
Q R
The protractor’s arrow and pen hole isplaced on the angle’s vertex. The 0˚ lineis placed over one side of the angle.Read the measure where the other leg ofthe angle intersects the protractor.
PQR measures 70˚.
LMN =
L
M N
ABC =
A
B C
UVW =
U
V W
GHI =
G
H IH