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S = rθ Formula and Equation
Radian Measure and Arc of a Circle
Formula for S =rθ
The picture below illustrates the relationship between the radius, and the central angle in radians. The formula is
s = rθ where s represents the arc length, θ represents the central angle in radians and r is the length of the radius.
What is the value of the arc length s in the circle pictured below?
Use the s=rθ formula
S = 3(Π/3) = Π
What is the value of the arc length s in the circle pictured below?
Use the formula for S=rΘ and calculate the intercepted arc: 6Π
Calculate the measure of the arc length s in the circle pictured below?
Use the formula for S=rΘ and calculate the intercepted arc: 4 Π
Calculate the measure of the arc length s in the circle pictured below?
Use the formula for S=rΘ and calculate the solution
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