For a sphere of radius 10 cm, the numerical value of surface area is what percent of the numerical value of its value ?

a. 24%
b. 26.5%
c. 30%
d. 45%

• i think there is some error on the question. Question should be ..for a sphere of radius 10 cm , the numerical value of surface area is what percent of the numerical value of its volume?
• 10 years agoHelpfull: Yes(3) No(1)
• Surface area = 4 *22/7 *r2
  =
  3/r(4/3 * 22/7 * r3)
  =3/r * VOLUME
  Where r = 10 cm
  So we have S= 3/10 V
  =3/10 *100 % of V
  = 30 % of V
  So surface area is 30 % of Volume.
• 9 years agoHelpfull: Yes(0) No(0)