A sphere is inside a cube. The diameter of the sphere is equal to one-third the edge length of the cube. What portion of the volume of the cube is taken up by the sphere?

the one on the bottom left

step-by-step explanation:

all of the other ones have a specific pattern

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.