Question

Find the surface area of sphere whose volume is 4851m^3.

Answer 1

v=4851m^3... using formula of v of sphere then u get r value then u should use the formula of CSA i.e pie r^2

Answer 2

Answer:

1386 m²

Step-by-step explanation:

Solution:

1. Given the volume, find the radius

2. With the radius, find the surface area

Formula needed:

Volume of a sphere = 4/3 πr³

Surface area of a sphere = 4πr²

* Using π as 22/7

STEP 1: Find the radius

Volume = 4/3 πr³

4851 = 4/3 πr³

πr³ = 4851 ÷ 4/3

πr³ = 3638.25

r³ = 3638.25 ÷ π

r³ = 1157.625

r = ∛1157.625

r = 10.5 m

STEP 2: Find the surface area

Surface area = 4πr²

Surface area = 4π(10.5)²

Surface area = 1386 m²

Answer: 1386 m²