I have three questions I need help on, if anyone is willing to help me with. I would greatly appreciate it. Will Medal. Please and thank you.

Question

anonymous · Answer

1. What is the altitude of the cone?

anonymous · Answer

2. What is the volume of the cone?

I used google calculator for this one and the last one and the numbers do not match. 
I'm getting 50.27 for this one. but here are the answers. 

a. 60 
b. 20
c. 16
d. 54

anonymous · Answer

3. What is the surface area of the cone?

I'm getting 301.59

what am I doing wrong?

anonymous · Answer

answers for the last one, I forgot to list. 

a. 96
b.20
c.36
d. 60

awolflover1 · Answer

1. obviously, CE is altitude  of that cone,

awolflover1 · Answer

The distance from the apex (vertex) of a cone to the base is the altitude. It is the shortest (perpendicular distance) line segment between the apex of a cone and the (possibly extended) base. Altitude also refers to the length of this segment. So, that would be (as already given without explanation :) ) segment CE.

anonymous · Answer

Thank you @Awolflover1! :)

anonymous · Answer

surface area of the cone is pi* radius * slant height + pi* square of radius.

awolflover1 · Answer

2. I think its A Because i times 5x3x4=60

anonymous · Answer

@cooldude17 says it's 16 pi. Uhoh, so is it 60 or 16?

awolflover1 · Answer

Hmm

anonymous · Answer

its 1/3 pi * 4*4*3 = 16 pi cm cube

anonymous · Answer

calculate the surface area.

anonymous · Answer

Would I do it the same way you calculated the volume or no?

anonymous · Answer

no surface area has got a different formula

anonymous · Answer

Would it be 36 pi cm3?

anonymous · Answer

cm2*

anonymous · Answer

pi*r*l = pi*6*8 + pi*6*6 = 36pi+48pi = 74pi cm square.

anonymous · Answer

74 isn't one of the choices?

anonymous · Answer

sorry, it definitely has to be 84 pi cm 2

anonymous · Answer

84 is not a choice either. @cooldude17

anonymous · Answer

what do you think @Awolflover1

anonymous · Answer

the choices are.

96
20
36 
60

anonymous · Answer

so most rational choice comes to be 36

anonymous · Answer

alright well thank you!

anonymous · Answer

when u talk about surface area.. iits curved surface area + surface area of base.

anonymous · Answer

Well for the three questions you guys helped me with I still got 9 out of 11 questions correct.

anonymous · Answer

But it don't tell me which ones I got incorrect.

anonymous · Answer

hey u got more questions?