Need on these four and then i am done, , i'm slowly getting the hang of it, i've already done all the other ones!

For #11, the answer is C, I’m pretty sure.

For #12, KM = LN, and LM = KN.

I can’t help with the others though, sorry :/

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

i dont know sorry

step-by-step explanation: