Question

This is Geometry: Find the surface area of a sphere whose radius is 7 millimeters. Round to the nearest hundredth.

Answer 1

Step 1 ) print this: http://mdk12.org/instruction/curriculum/hsa/geometry/math_reference_sheet.html

Answer 2

The surface area of a sphere is given by: A=4(pi)(r^2), all we do is plug the radius 7 into the equation.
(4)(pi)(25)=314.16

Answer 3

here is the multiple choice for the q. A. 813.55 B. 615.75 C. 205.25 D. 175.93

Answer 4

Sa = 4pi r^2

Sa = 4pi 7^2

Sa = 4pi 49

Sa = 196pi = abt. 615.75

Answer 5

Thanks :D

Answer 6

my bad i plugged in5 instead of 7

Answer 7

its okay :)