A sphere and a cylinder have the same radius and height. The volume of the cylinder is 21 meters cubed.

A sphere with height h and radius r. A cylinder with height h and radius r.

What is the volume of the sphere?
6 meters cubed
7 meters cubed
14 meters cubed
28 meters cubed

Step-by-step explanation:

Volume of cylinder V1=πr²h

for sphere h=r

so for cylinder also h=r(∵ both have same h)

V1=πr²×r=πr³=21

volume of sphere V2=4/3 πr³=4/3×21=28 meters cubed.

answer: idk

step-by-step explanation:

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer