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angle-measure MCQ Questions for Class 11

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4 questions tagged with angle-measure.

Question 1/4 Expert Mathematics Trigonometric Functions Angles Class 11 Level 68

किसी समबहुभुज का प्रत्येक आंतरिक कोण \(\frac{5\pi}{6}\) है। उसकी भुजाओं की संख्या क्या है?

Each interior angle of a regular polygon is \(\frac{5\pi}{6}\). What is the number of its sides?

Explanation opens after your attempt
Correct Answer

C. (12)

Step 1

Concept

The interior angle of a regular polygon is (\frac{(n-2)\pi}{n}). From (\frac{(n-2)\pi}{n}=\frac{5\pi}{6}) we get (n=12).

Step 2

Why this answer is correct

The correct answer is C. (12). The interior angle of a regular polygon is (\frac{(n-2)\pi}{n}). From (\frac{(n-2)\pi}{n}=\frac{5\pi}{6}) we get (n=12).

Step 3

Exam Tip

समबहुभुज का आंतरिक कोण (\frac{(n-2)\pi}{n}) होता है। (\frac{(n-2)\pi}{n}=\frac{5\pi}{6}) से (n=12) मिलता है।

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Question 2/4 Hard Mathematics Trigonometric Functions Angles Class 11 Level 69

पूर्ण चक्कर के \(\frac{3}{8}\) भाग का रेडियन माप क्या है?

What is the radian measure of \(\frac{3}{8}\) of a complete revolution?

Explanation opens after your attempt
Correct Answer

C. \(\frac{3\pi}{4}\)

Step 1

Concept

A complete revolution is \(2\pi\) radians. \(\frac{3}{8}\times2\pi=\frac{3\pi}{4}\).

Step 2

Why this answer is correct

The correct answer is C. \(\frac{3\pi}{4}\). A complete revolution is \(2\pi\) radians. \(\frac{3}{8}\times2\pi=\frac{3\pi}{4}\).

Step 3

Exam Tip

पूर्ण चक्कर \(2\pi\) रेडियन है। \(\frac{3}{8}\times2\pi=\frac{3\pi}{4}\) होता है।

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Question 3/4 Hard Mathematics Trigonometric Functions Angles Class 11 Level 69

\(\frac{7\pi}{2}\) रेडियन कितने पूर्ण चक्करों के बराबर है?

\(\frac{7\pi}{2}\) radians is equal to how many revolutions?

Explanation opens after your attempt
Correct Answer

C. \(\frac{7}{4}\)

Step 1

Concept

One revolution is \(2\pi\) radians. \(\frac{7\pi}{2}\div2\pi=\frac{7}{4}\) revolutions.

Step 2

Why this answer is correct

The correct answer is C. \(\frac{7}{4}\). One revolution is \(2\pi\) radians. \(\frac{7\pi}{2}\div2\pi=\frac{7}{4}\) revolutions.

Step 3

Exam Tip

एक चक्कर \(2\pi\) रेडियन होता है। \(\frac{7\pi}{2}\div2\pi=\frac{7}{4}\) चक्कर।

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Question 4/4 Hard Mathematics Trigonometric Functions Angles Class 11 Level 69

(2.75) पूर्ण चक्करों के बराबर कोण का रेडियन माप क्या है?

What is the radian measure of an angle equal to (2.75) complete revolutions?

Explanation opens after your attempt
Correct Answer

B. \(\frac{11\pi}{2}\)

Step 1

Concept

One revolution is \(2\pi\) radians. Write \(2.75\times2\pi=\frac{11\pi}{2}\).

Step 2

Why this answer is correct

The correct answer is B. \(\frac{11\pi}{2}\). One revolution is \(2\pi\) radians. Write \(2.75\times2\pi=\frac{11\pi}{2}\).

Step 3

Exam Tip

एक चक्कर \(2\pi\) रेडियन होता है। \(2.75\times2\pi=\frac{11\pi}{2}\) लिखें।

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