If (\frac{3x\pi}{20}) radians equals (81^\circ), what is the value of (x)?

Question

Answer and explanation

Correct answer: (3)

(81^\circ=\frac{9\pi}{20}), so (\frac{3x\pi}{20}=\frac{9\pi}{20}) gives (x=3). In exams, write both angles in the same unit.

What is the correct answer to this question?

(3)

Why is this the correct answer?

(81^\circ=\frac{9\pi}{20}), so (\frac{3x\pi}{20}=\frac{9\pi}{20}) gives (x=3). In exams, write both angles in the same unit.

Which subject and chapter does this question cover?

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