Missing angles

Grade 6 · Free printable game: Secret code joke

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Secret code joke

What gets wetter the more it dries?

Answer each question. Find the letter next to the right answer and write it in the box with the same number. The letters spell the punchline!

  1. A triangle has angles of 90° and 35°. What is the third angle?T 235°N 65°P 45°A 55°
  2. A triangle has angles of 60° and 70°. What is the third angle?R 60°T 50°F 40°P 230°
  3. Two straight lines cross. One angle is 75°. What is the angle vertically opposite it?K 285°J 90°O 75°D 105°
  4. Two straight lines cross. One angle is 40°. What is the angle vertically opposite it?C 320°W 40°U 140°R 90°
  5. A quadrilateral has angles of 90°, 90° and 100°. What is the fourth angle?A 82°E 80°M 70°U 90°
  6. What is each angle of a regular pentagon?K 120°O 72°L 108°Y 540°
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Missing angles

Grade 6 · Worksheet

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Circle the correct answer.

  1. A quadrilateral has angles of 95°, 85° and 100°. What is the fourth angle? 90°     80°     70°     82°
  2. A triangle has angles of 25° and 120°. What is the third angle? 215°     25°     45°     35°
  3. Two straight lines cross. One angle is 130°. What is the angle vertically opposite it? 130°     50°     230°     90°
  4. What is each angle of a regular pentagon? 108°     540°     72°     120°
  5. A triangle has angles of 45° and 45°. What is the third angle? 100°     90°     80°     270°
  6. What is each angle of a regular hexagon? 720°     60°     120°     132°
  7. A triangle has angles of 60° and 70°. What is the third angle? 60°     50°     40°     230°
  8. A triangle has angles of 100° and 30°. What is the third angle? 50°     40°     230°     60°
  9. What is each angle of a regular octagon? 135°     147°     45°     1080°
  10. A quadrilateral has angles of 90°, 90° and 100°. What is the fourth angle? 70°     90°     82°     80°
  11. A triangle has angles of 80° and 55°. What is the third angle? 35°     225°     45°     55°
  12. Two straight lines cross. One angle is 75°. What is the angle vertically opposite it? 105°     285°     90°     75°
  13. A triangle has angles of 90° and 35°. What is the third angle? 235°     55°     45°     65°
  14. Two straight lines cross. One angle is 40°. What is the angle vertically opposite it? 320°     40°     90°     140°
  15. A quadrilateral has angles of 70°, 110° and 70°. What is the fourth angle? 100°     110°     90°     120°
  16. A quadrilateral has angles of 120°, 80° and 60°. What is the fourth angle? 90°     110°     102°     100°

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Missing angles

Grade 6 · Answer sheet

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Secret code joke

What gets wetter the more it dries? A TOWEL

1. 55° (A) · 2. 50° (T) · 3. 75° (O) · 4. 40° (W) · 5. 80° (E) · 6. 108° (L)

Worksheet

  1. A quadrilateral has angles of 95°, 85° and 100°. What is the fourth angle? 80°
  2. A triangle has angles of 25° and 120°. What is the third angle? 35°
  3. Two straight lines cross. One angle is 130°. What is the angle vertically opposite it? 130°
  4. What is each angle of a regular pentagon? 108°
  5. A triangle has angles of 45° and 45°. What is the third angle? 90°
  6. What is each angle of a regular hexagon? 120°
  7. A triangle has angles of 60° and 70°. What is the third angle? 50°
  8. A triangle has angles of 100° and 30°. What is the third angle? 50°
  9. What is each angle of a regular octagon? 135°
  10. A quadrilateral has angles of 90°, 90° and 100°. What is the fourth angle? 80°
  11. A triangle has angles of 80° and 55°. What is the third angle? 45°
  12. Two straight lines cross. One angle is 75°. What is the angle vertically opposite it? 75°
  13. A triangle has angles of 90° and 35°. What is the third angle? 55°
  14. Two straight lines cross. One angle is 40°. What is the angle vertically opposite it? 40°
  15. A quadrilateral has angles of 70°, 110° and 70°. What is the fourth angle? 110°
  16. A quadrilateral has angles of 120°, 80° and 60°. What is the fourth angle? 100°

learnwith.games – free to print and copy for home and classroom use. learnwith.games/us/printables/missing-angles/