ca some please help me with this because i keep getting the wrong answer Find the surface area of a sphere with a diameter of 78. (use 3.14 for pi)
Answer 979.68
76,415.04
489.84
19,103.76

Question

ca some please help me with this because i keep getting the wrong answer Find the surface area of a sphere with a diameter of 78. (use 3.14 for pi)
Answer    979.68 
   76,415.04 
   489.84 
   19,103.76

anonymous · Answer

i used the formula t=4 times pi times r^2 bt i can not get the right answer help please

anonymous · Answer

Area = 4*3.14*78^2 = 76,415.04
Second answer. The formula is right, dont know what you got wrong...

anonymous · Answer

You need to make sure you divide the diameter by 2.  That is what the radius is.