MathLab with Mr. Ahmed

MathLab with Mr. Ahmed is a math learning website by Ahmed Amasha, a mathematics teacher teaching the American curriculum. Explore Algebra 2, Precalculus, Calculus, and SAT and PSAT Math Prep through lessons, focused practice and printable resources.

MathLabwith Mr. Ahmed
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Radians and arc length

Question 1 of 3

Know the idea

What is the measure of an angle of 60∘60^{\circ} in radians?
Worked example
Multiply by π180\dfrac{\pi }{180}: 60×π180=π360 \times \dfrac{\pi }{180} = \dfrac{\pi }{3}.
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A circle has radius 77. A central angle intercepts an arc of length 1414. What is the measure of the angle in radians?