The surface area of a sphere is 2464cm². If its radius be doubled,what will be the surface area of the new sphere?
SunilChoudhary1:
19712
9856
u r right
Answers
Answered by
2
surface area of sphere = 4πr^2
now radius = 2r
so s.area= 4π *(2r^2)
so surface area becomes 4 times the previous area
now radius = 2r
so s.area= 4π *(2r^2)
so surface area becomes 4 times the previous area
Similar questions