Concept-wise Practice

arc-length-formula MCQ Questions for Class 11

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Practice Questions

1 questions tagged with arc-length-formula.

यदि \(\theta=4\) रेडियन और (r=7) सेमी हो तो चाप की लंबाई (s) क्या होगी?

If \(\theta=4\) radians and (r=7) cm then what is the arc length (s)?

Explanation opens after your attempt
Correct Answer

B. (28) सेमी(28) cm

Step 1

Concept

\(s=r\theta=7\times4=28\) cm. When angle is in radians use \(s=r\theta\).

Step 2

Why this answer is correct

The correct answer is B. (28) सेमी / (28) cm. \(s=r\theta=7\times4=28\) cm. When angle is in radians use \(s=r\theta\).

Step 3

Exam Tip

\(s=r\theta=7\times4=28\) सेमी होता है। रेडियन में कोण हो तो \(s=r\theta\) लगाएं।

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