Exercises: Understand Radian Measure of an Angle

Show your work where applicable. Express radian answers in terms of pi unless otherwise stated.

Grade 9·22 problems·~25 min·Common Core Math - HS Functions·group·hsf-tf-a-1

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Warm-Up: Review What You Know

These problems review skills you have already learned.

A circle has a central angle of 90°. What fraction of the full circle does this angle sweep out?

$\frac{1}{6}$

$\frac{1}{4}$

$\frac{1}{3}$

$\frac{1}{2}$