Day 198: CBSE Class 10 Maths

1. A.
   a prime number.
2. B.
   a composite number.
3. C.
   prime as well as composite.
4. D.
   neither prime nor composite.

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1. A.
   $30^\circ$
2. B.
   $45^\circ$
3. C.
   $60^\circ$
4. D.
   $90^\circ$

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1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   $8\pi$ cm
2. B.
   $6\pi$ cm
3. C.
   $4\pi$ cm
4. D.
   $3\pi$ cm

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