Q. What is the total surface area of the hemisphere,whose radius is 10.5cm?

Option
a) 1049.5
b) 1039.5
c) 999.5
d) 1085.5

• The surface area of a hemisphere is 3 Pi r square.
  So, the answer will be 3 * 22/7 * (10.5) * (10.5) = 99*10.5 = 1039.5
  
  Choice (2)
• 10 years agoHelpfull: Yes(4) No(1)
• Ans:- 1039.5
  using Total surface area of hemisphere = 4*pi*r*r ,
• 9 years agoHelpfull: Yes(1) No(1)
• TSA OF HEMISPHERE=3PIE.R.SQUARED
  APPLY RADIUS IN PLACE OF R
  SO YOU WILL GET ANSWER 1039.5
  
• 7 years agoHelpfull: Yes(1) No(0)
• Radius = 10.5 cm
  TSA of Hemisphere = 3 pie (radius)square
  
• 8 years agoHelpfull: Yes(0) No(0)
• The surface area of a hemisphere is 3 Pi r square.
  So, the answer will be 3 * 22/7 * (10.5) * (10.5) = 99*10.5 = 1039.5
  
  Choice (2)
• 4 years agoHelpfull: Yes(0) No(0)