The coordinates A(0, 0), B(0, 4) and C(2, 0) are graphed and connected together. What 3-dimensional shape will be created when this shape is rotated about the y-axis? Provide an explanation and proof for your answer to receive full credit.

Question

unofficialllyy · Answer

@zzr0ck3r

unofficialllyy · Answer

It would still be a cone after it's rotated about the y-axis, right?

imqwerty · Answer

is it given that the cordinates of A,B,C are x-y or y-z or x-z cordinates??

unofficialllyy · Answer

I don't know

unofficialllyy · Answer

I'm pretty sure it makes a cone.

unofficialllyy · Answer

@Hero

hero · Answer

Correct.

unofficialllyy · Answer

It says I need proof. How would i prove that?

unofficialllyy · Answer

I'm not even really sure how, I just know it's a cone.

unofficialllyy · Answer

I just need to elaborate more in my answer.

hero · Answer

http://www.sparknotes.com/testprep/books/sat2/math1c/chapter7section5.rhtml

hero · Answer

Use the statement and reasons method of geometric proof: 

A right triangle rotated about one of its legs produces a cone.

unofficialllyy · Answer

Okay I see now. Thank you!