Vinay concluded: "Segments \overline{AB} AB start overline, A, B, end overline and \overline{CD} CD start overline, C, D, end overline have no angles with the same measurement, so they are not congruent."

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)

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

you need to add a picture