Back to Understand radian measure — Problem 1 · Task Set 63

HSF.TF.A.1 Tutor Intake — Radian Measure and the Unit Circle

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Grade 9·10 problems·~12 min·Common Core Math - HS Functions·group·hsf-tf-a-1

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Concepts

Which statement best defines a radian?

The angle subtended at the center of a circle by an arc equal in length to the radius

The angle equal to one-sixtieth of a full rotation

The ratio of the circumference to the diameter of a circle

An angle of exactly 57 degrees