Question
Download Solution PDFThe diameter of a right circular cylinder is 14 cm and height is 2 cm. The sum of its curved surface area and the total surface area is: (Use π = \(\frac{22}{7}\))
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Diameter of the cylinder = 14 cm
Height of the cylinder = 2 cm
π = 22/7
Formula used:
The curved surface area of a cylinder = 2πrh
Total surface area of a cylinder = 2πr(r + h)
Solution:
Curved surface area = 2πrh
= 2 × 22/7 × 7 × 2
= 44 × 2
= 88 cm²
Total surface area = 2πr(r + h)
= 2 × 22/7 × 7(7 + 2)
= 44 × 9
= 396 cm²
Sum of the surface areas = 88 cm² + 396 cm²
= 484 cm²
∴ Option 1 is the correct answer.
Last updated on Jun 30, 2025
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