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Measure Obtuse Angles is a free printable Grade 4 math worksheet on using a protractor's outer scale on angles over 90 degrees, aligned to Common Core standard 4.MD.C.5. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 17 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Measure Obtuse Angles

4.MD.C.5

NameDate

Measure each angle.

1.
Measure the angle.
2.
Measure the angle.
3.
Measure the angle.
4.
Measure the angle.
5.
Measure the angle.
6.
Measure the angle.
7.
Measure the angle.
8.
Measure the angle.

LessonPrint · 4.MD.C.5 · Set 17 · free to copy for classroom use

Answer key — Measure Obtuse Angles

Set 17. Prints on its own sheet.

  1. 1.105°
  2. 2.155°
  3. 3.140°
  4. 4.170°
  5. 5.95°
  6. 6.130°
  7. 7.110°
  8. 8.115°

Last reviewed 2026-09-05. Aligned to 4.MD.C.5 of the Common Core State Standards for Mathematics.