a. Approximate the measure of the indicated angle, $\theta$, measured in radians.
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b. Using the figure above, and without using a calculator, approximate the value of $5\sin(\theta)$.
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c. Using your answer from part (b), approximate the value of $\sin(\theta)$.
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d. Using the figure above, and without using a calculator, approximate the value of $5\cos(\theta)$.
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e. Using your answer from part (d), approximate the value of $\cos(\theta)$.
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