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Class 12 Mathematics Trigonometric Functions AnglesExpertLevel 67

A sector has radius (7) cm and perimeter (22) cm. What is the central angle in radians?

Answer and explanation

Correct answer: (\frac{8}{7})

Sector perimeter is (2r+r\theta), so (14+7\theta=22). This gives (\theta=\frac{8}{7}).

Tags

trigonometric-functionsanglessector-perimeterexpert

Frequently asked questions

What is the correct answer to this question?

(\frac{8}{7})

Why is this the correct answer?

Sector perimeter is (2r+r\theta), so (14+7\theta=22). This gives (\theta=\frac{8}{7}).

Which subject and chapter does this question cover?

This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Angles.

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