A spherical box has a surface area of 528 cm2. Find the radius of the spherical box.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. √42 cm.
Surface area of spherical box = 528 cm2
Surface area of sphere = 4πR2
Hence, 528 = 4πR2
⇒ 132 = 22/7 × R2
Solving for R we get
R = √42
Hence, the radius of the spherical box is √42 cm.