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DIRECTION : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion : Total surface area of the cylinder having radius of the base 14 cm and height 30 cm is 3872 cm2 .
Reason : If r be the radius and h be the height of the cylinder, then total surface area = (2prh +2pr2).
  • a)
    Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
  • b)
    Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
  • c)
    Assertion (A) is true but reason (R) is false.
  • d)
    Assertion (A) is false but reason (R) is true.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
DIRECTION : In the following questions, a statement of assertion (A) ...
Total surface area = 2prh +2pr2
= 2p r (h + r)
= 3872 cm2
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Most Upvoted Answer
DIRECTION : In the following questions, a statement of assertion (A) ...
Assertion and Reason:
Assertion (A): The total surface area of a cylinder with a base radius of 14 cm and height of 30 cm is 3872 cm².
Reason (R): The formula for the total surface area of a cylinder is given by 2πrh + 2πr², where r is the radius and h is the height of the cylinder.

Explanation:
To determine the correctness of the assertion and reason, let's calculate the total surface area of the given cylinder using the formula mentioned in the reason.

Given:
Radius of the base (r) = 14 cm
Height of the cylinder (h) = 30 cm

Using the formula for the total surface area of a cylinder:
Total surface area = 2πrh + 2πr²

Substituting the given values into the formula:
Total surface area = 2π(14)(30) + 2π(14)²
= 2π(420) + 2π(196)
= 840π + 392π
= 1232π cm²

Now, let's calculate the approximate value of the total surface area using a calculator:
Total surface area ≈ 3871.58 cm²

Comparison:
The calculated total surface area is approximately 3871.58 cm², which is close to the value provided in the assertion (3872 cm²). Hence, the assertion is correct.

The reason states the correct formula for calculating the total surface area of a cylinder, which is 2πrh + 2πr². This formula is used to calculate the total surface area in the above calculation. Therefore, the reason is the correct explanation for the assertion.

Conclusion:
Both the assertion and the reason are true, and the reason is the correct explanation for the assertion. Hence, the correct answer is option 'A'.
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DIRECTION : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Total surface area of the cylinder having radius of the base 14 cm and height 30 cm is 3872 cm2 .Reason : If r be the radius and h be the height of the cylinder, then total surface area = (2prh +2pr2).a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer?
Question Description
DIRECTION : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Total surface area of the cylinder having radius of the base 14 cm and height 30 cm is 3872 cm2 .Reason : If r be the radius and h be the height of the cylinder, then total surface area = (2prh +2pr2).a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about DIRECTION : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Total surface area of the cylinder having radius of the base 14 cm and height 30 cm is 3872 cm2 .Reason : If r be the radius and h be the height of the cylinder, then total surface area = (2prh +2pr2).a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for DIRECTION : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Total surface area of the cylinder having radius of the base 14 cm and height 30 cm is 3872 cm2 .Reason : If r be the radius and h be the height of the cylinder, then total surface area = (2prh +2pr2).a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer?.
Solutions for DIRECTION : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Total surface area of the cylinder having radius of the base 14 cm and height 30 cm is 3872 cm2 .Reason : If r be the radius and h be the height of the cylinder, then total surface area = (2prh +2pr2).a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
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