Surface area of a sphere = 4 pi r ^2 r = 10 units is given
S.A. = 4 pi ( 10)^2 = 400 pi units ^2
LATERAL Surface area of sphere = pi * 2r * h but we know that h = 2r
= pi * 2r * 2r = 4 pi r^2
Surface area of a sphere = 4 pi r^2
so the difference between the sphere srface area and the lateral cylinder = ZERO
AGAIN......need the image..... SMH
a) expected value = (8 x 3 + 2 x 8 ) / 10 = 4
b) (8 * 3 + 3 * 8 ) / 11 =
c) ( 8 * 3 + 4 * 8) / 12 =
d ) (8* 3 + x * 8) / (8+x) = 6 solve for x
e ) ( 8*3 + x*8) / (8+x) = 7 solve for x
Need image.....
Here is what I would do: area of red rectangle = 5 x 3 = 15 units^2
then subtract each of the right triangles area = 1/2 b * h
15 - 1 - 2 - 1/2 - 2.25 = 9.25 units^2
