त्रिज्या (8) सेमी वाले वृत्त में \(135^\circ\) कोण से बने चाप की लंबाई क्या होगी?
What will be the arc length made by \(135^\circ\) in a circle of radius (8) cm?
Explanation opens after your attempt
B. \(6\pi\) सेमी\(6\pi\) cm
Concept
\(135^\circ=\frac{3\pi}{4}\) and \(s=8\times \frac{3\pi}{4}=6\pi\) cm. It is necessary to convert a degree angle into radians first.
Why this answer is correct
The correct answer is B. \(6\pi\) सेमी / \(6\pi\) cm. \(135^\circ=\frac{3\pi}{4}\) and \(s=8\times \frac{3\pi}{4}=6\pi\) cm. It is necessary to convert a degree angle into radians first.
Exam Tip
\(135^\circ=\frac{3\pi}{4}\) और \(s=8\times \frac{3\pi}{4}=6\pi\) सेमी है। डिग्री कोण को पहले रेडियन में बदलना जरूरी है।
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