Page 124 - Math Genius C5

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\ 08-Oct-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

practice time 6c

1. Write the measure of the following angles by reading the scales on the protractor.

(a) (b)
80 90 100 80 90 100
70 110 70 110
60 120 110 100 90 80 70 120 60 120 110 100 90 80 70 120
50 60 130 50 60 130
40 140 130 50 40 140 40 140 130 50 40 140
30 150 30 150
150 30 150 30
20 160 20 160 20 160 20 160
10 170 10 170 10 170 10 170
180 0 180 0 180 0 180
0

(c) (d)
80 90 100 80 90 100
70 110 70 110
60 120 110 100 90 80 70 120 60 120 110 100 90 80 70 120
50 60 130 50 60 130
40 140 130 50 40 140 40 140 130 50 40 140
30 150 30 150
150 30 150 30
20 160 20 160 20 160 20 160
10 170 10 170 10 170 10 170
0 180 0 180 0 180 0 180

(e) 180 0 180 0 (f)

170 10 170 10
80 90 100
110
160 20 160 20 60 70 90 80 70 120
30 150 120 110 100 60
150 30 50 130
40 140 40 130 50 140
140 40 140 40
50 130
150 30
130 50 30 150
60
120 70 120 110 100 60
20 160
80
110 100 90 80 70 160 20
90
10 170 10 170
0 180 0 180
2. Use a protractor to measure each angle.
( a) (b) (c) ( d)
A
P S G

Q R O D
B C T U

∠ABC = _____ ∠PQR = _____ ∠STU = _____ ∠GOD = _____

3. Draw the following angles using a protractor.

( a) 40° (b) 50° (c) 75° (d) 125° (e) 142°

( f) 25° (g) 175° (h) 120° (i) 90° (j) 165°

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