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What is the diameter of the largest circle lying on the surface of a Sphere of surface area 616 sq cm?

A) 14 cm
B) 10.5 cm
C) 7 cm
D) 3.5 cm

Correct Answer:

A) 14 cm

Description for Correct answer:
Surface area of sphere = \( \Large 616 cm^{2} \)

\( \Large 4 \pi r^{2} = 616 => r^{2} = \frac{616 \times 7}{4 \times 22} \)

=> \( \Large r^{2} = 7 \times 7 => r = 7 cm \)

Therefore, Diameter of largest circle lying on sphere

= \( \Large 2 \times r = 2 \times 7 = 14 cm \)

Part of solved Volume and surface area questions and answers : >> Elementary Mathematics >> Volume and surface area

Comments

Similar Questions

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