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Course: High school math (India) > Unit 1

Lesson 9: Angles
Math
High school math (India)
Bridge (9th)
Angles
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Measurement of angles

Google Classroom

Problem

Measure the angle in degrees.
A protractor shows points plotted at 0 and 80 degrees. Rays go out from a vertex at the protractor's center and through each point. The area between the rays is shaded.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
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