Taking (\pi=\frac{22}{7}), what is the central angle in degrees for radius (21) cm and arc length (11) cm?
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Answer and explanation
Correct answer: (30^\circ)
(\theta=\frac{11}{21}) radians and the degree measure is (\frac{11}{21}\times\frac{180^\circ\times7}{22}=30^\circ). In exams, convert radians to degrees carefully.
Frequently asked questions
What is the correct answer to this question?
(30^\circ)
Why is this the correct answer?
(\theta=\frac{11}{21}) radians and the degree measure is (\frac{11}{21}\times\frac{180^\circ\times7}{22}=30^\circ). In exams, convert radians to degrees carefully.
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Angles.
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