Chapter 15: Practice examination

37 questions · 91 points

Independent exam: solutions are on a separate page; do not open until finished. Include units and explain reasoning. There is no mandatory time limit.

Question 1 · construction · 4 points

Using a protractor, construct an angle measuring 105°. Label its vertex and both rays.

Question 2 · angle arithmetic · 2 points

An angle of 116° lies next to another angle on a straight line. Find the missing angle.

Question 3 · measurement · 2 points

Measure the smaller indicated angle between the two rays, in degrees.

Question 4 · measurement · 2 points

Measure the smaller indicated angle between the two rays, in degrees.

Question 5 · classification · 2 points

Classify a 60° angle as acute, right, obtuse, or straight.

Question 6 · angle arithmetic · 2 points

An angle of 26° lies next to another angle on a straight line. Find the missing angle.

Question 7 · reasoning · 3 points

The smaller angle between two rays is 163°. Find their reflex angle. Explain which turn or benchmark you used.

Question 8 · reasoning · 3 points

Classify a 170° angle as acute, right, obtuse, or straight. Explain which turn or benchmark you used.

Question 9 · measurement · 2 points

Measure the smaller indicated angle between the two rays, in degrees.

Question 10 · construction · 4 points

Using a protractor, construct an angle measuring 55°. Label its vertex and both rays.

Question 11 · angle arithmetic · 2 points

An angle of 105° lies next to another angle on a straight line. Find the missing angle.

Question 12 · reflex angle · 2 points

The smaller angle between two rays is 133°. Find their reflex angle.

Question 13 · reflex angle · 2 points

The smaller angle between two rays is 71°. Find their reflex angle.

Question 14 · reflex angle · 2 points

The smaller angle between two rays is 147°. Find their reflex angle.

Question 15 · reasoning · 3 points

Measure the smaller indicated angle between the two rays, in degrees. Explain which turn or benchmark you used.

Question 16 · measurement · 2 points

Measure the smaller indicated angle between the two rays, in degrees.

Question 17 · classification · 2 points

Classify a 105° angle as acute, right, obtuse, or straight.

Question 18 · measurement · 2 points

Measure the smaller indicated angle between the two rays, in degrees.

Question 19 · classification · 2 points

Classify a 160° angle as acute, right, obtuse, or straight.

Question 20 · construction · 4 points

Using a protractor, construct an angle measuring 150°. Label its vertex and both rays.

Question 21 · angle arithmetic · 2 points

An angle of 42° lies next to another angle on a straight line. Find the missing angle.

Question 22 · reasoning · 3 points

Using a protractor, construct an angle measuring 40°. Label its vertex and both rays. Explain which turn or benchmark you used.

Question 23 · reasoning · 3 points

An angle of 112° lies next to another angle on a straight line. Find the missing angle. Explain which turn or benchmark you used.

Question 24 · construction · 4 points

Using a protractor, construct an angle measuring 145°. Label its vertex and both rays.

Question 25 · classification · 2 points

Classify a 30° angle as acute, right, obtuse, or straight.

Question 26 · classification · 2 points

Classify a 65° angle as acute, right, obtuse, or straight.

Question 27 · reflex angle · 2 points

The smaller angle between two rays is 149°. Find their reflex angle.

Question 28 · reflex angle · 2 points

The smaller angle between two rays is 84°. Find their reflex angle.

Question 29 · classification · 2 points

Classify a 50° angle as acute, right, obtuse, or straight.

Question 30 · measurement · 2 points

Measure the smaller indicated angle between the two rays, in degrees.

Question 31 · reflex angle · 2 points

The smaller angle between two rays is 119°. Find their reflex angle.

Question 32 · construction · 4 points

Using a protractor, construct an angle measuring 135°. Label its vertex and both rays.

Question 33 · angle arithmetic · 2 points

An angle of 133° lies next to another angle on a straight line. Find the missing angle.

Question 34 · construction · 4 points

Using a protractor, construct an angle measuring 40°. Label its vertex and both rays.

Question 35 · reflex angle · 2 points

The smaller angle between two rays is 70°. Find their reflex angle.

Question 36 · measurement · 2 points

Measure the smaller indicated angle between the two rays, in degrees.

Question 37 · angle arithmetic · 2 points

An angle of 85° lies next to another angle on a straight line. Find the missing angle.

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