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Missing angle in a pentagon

Year 8 maths · Fieldbook Learning

Name ______________________ Date __________

Find the total of the interior angles, then subtract the angles you know.

  1. Four angles of a pentagon measure 128°, 110°, 56° and 226°. What is the measure of the remaining angle, in degrees?
  2. Four angles of a pentagon measure 155°, 103°, 102° and 160°. What is the measure of the remaining angle, in degrees?
  3. Four angles of a pentagon measure 121°, 144°, 120° and 135°. What is the measure of the remaining angle, in degrees?
  4. Four angles of a pentagon measure 72°, 84°, 136° and 228°. What is the measure of the remaining angle, in degrees?
  5. Four angles of a pentagon measure 97°, 132°, 94° and 197°. What is the measure of the remaining angle, in degrees?
  6. Four angles of a pentagon measure 89°, 132°, 23° and 276°. What is the measure of the remaining angle, in degrees?
  7. Four angles of a pentagon measure 64°, 162°, 159° and 135°. What is the measure of the remaining angle, in degrees?
  8. Four angles of a pentagon measure 20°, 166°, 118° and 216°. What is the measure of the remaining angle, in degrees?
  9. Four angles of a pentagon measure 84°, 150°, 72° and 214°. What is the measure of the remaining angle, in degrees?
  10. Four angles of a pentagon measure 80°, 91°, 143° and 206°. What is the measure of the remaining angle, in degrees?
  11. Four angles of a pentagon measure 58°, 54°, 114° and 294°. What is the measure of the remaining angle, in degrees?
  12. Four angles of a pentagon measure 150°, 41°, 158° and 171°. What is the measure of the remaining angle, in degrees?
  13. Four angles of a pentagon measure 42°, 113°, 156° and 209°. What is the measure of the remaining angle, in degrees?
  14. Four angles of a pentagon measure 26°, 72°, 148° and 274°. What is the measure of the remaining angle, in degrees?
  15. Four angles of a pentagon measure 70°, 52°, 24° and 374°. What is the measure of the remaining angle, in degrees?
  16. Four angles of a pentagon measure 163°, 138°, 80° and 139°. What is the measure of the remaining angle, in degrees?
  17. Four angles of a pentagon measure 110°, 123°, 155° and 132°. What is the measure of the remaining angle, in degrees?
  18. Four angles of a pentagon measure 85°, 158°, 164° and 113°. What is the measure of the remaining angle, in degrees?
  19. Four angles of a pentagon measure 76°, 150°, 19° and 275°. What is the measure of the remaining angle, in degrees?
  20. Four angles of a pentagon measure 159°, 162°, 166° and 33°. What is the measure of the remaining angle, in degrees?
More free practice: fieldbooklearning.com/au/practice/year-8/missing-angle-in-a-pentagon/

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Answer key: Missing angle in a pentagon

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