How many golf balls would fit in a 55 gallon drum? (one 2allon = 231 cubic inches; golf ball radius = .840 inches volume of sphere = 4/3 * pi * r ^ 3

5,082 balls  golf balls would fit in a 55 gallon drum.  

Solution:

Given,  

Radius of a golf ball = 0.840 inches

[Pi = 3.14]

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.