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Find the radius of a sphere whose surface area is 154…

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MATHS

Find the radius of a sphere whose surface area is 154 cm2 [take π = 22/7]

  • A. 1.75cm
  • B. 3.00cm
  • C. 3.50cm
  • D. 7.00cm

QUICK ANSWER…

C

SOLUTION 

Surface area of sphere:

Find the radius of a sphere whose surface area is 154

Now for the right answer to the above question:

  1. Option A is incorrect.
  2. Option B is incorrect.
  3. C is correct.
  4. D is not the correct answer.
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QUICK TIPS…

You may please note these/this:

  • Surface area of a sphere is given by 4 times pi times r-square.

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/ culled from 2018 JAMB-UTME mathematics question 39 /

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