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Adding Angles of Measure

4.MD.7
Answer Keys Here

Aligned To Common Core Standard:

Grade 4 Geometry - 4.MD.7

How to Add Angles of Measure - Angles are sections of a whole circle, and the circle is divided into angles of different sizes. And if we combine all the angles together, it forms a complete circle and the total angle becomes 360o. Two overlapping angles can be added together to get a larger angle. Now, let us discuss how we can add angles in a step-by-step manner. - Let us consider a large pizza, where you are combining the slices together backwards, in order to complete its circle form. - We just have to add the pointy ends together and put the slices together. - Wider the pizza slice is, larger is its angle. - Now, let's take a look at the figure below. WAX + XAY + YAZ = WAZ 50° + 30° + 40° = 120°

Printable Worksheets And Lessons







Homework Sheets

You have a whole bunch of partial angles that you need to use to find unknown angles with.

  • Homework 1 - What is the value of x?
  • Homework 2 - A little angle differences for you to determine.
  • Homework 3 - If students can understand this diagram, they are way ahead at this point.



Practice Worksheets

Previously, this skill was found up two grade levels on the National curriculum. Did students get smarter since I was in school?

  • Practice 1 - Choose the total value of the angle x.
  • Practice 2 - Find the value of angle F.
  • Practice 3 - In some cases, you will find sums of angles.



Math Skill Quizzes

I could only fit four fully readable problems per quiz. Sorry about that.

  • Quiz 1 - You will use mostly sums, but some differences are hanging around too.
  • Quiz 2 - These are slightly larger angles for you to find.
  • Quiz 3 - This really has a nice mix of problems to test your skills.