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**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:**

**Now for the right answer to the above question:**

**Option A is incorrect.****Option B is incorrect.****C is correct.****D is not the correct answer.**

**QUICK TIPS…**

**You may please note the****se/this****:**

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

**Use the questions and answers session to deal further on this topic…**

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**/**** ****culled from ****201****8 ****JAMB-UTME ****mathematics ****question**** 39 ****/**