Question

Find the slant height of the right cone.

Answer 1

First of all, do you see that the radius is 30?

Answer 2

use a^2+b^2=c^2

Answer 3

Yes, that makes D = 60.

Answer 4

Yes. However, look.

Do you see how this happens and where it is in the cone?

Answer 5

Mandonut, you can't use pythagorean theorem for a cone, there's no edges. That's like using a = 1/2bh for a circle.

Answer 6

Oh yeah, that's a right triangle by the way.

Answer 7

@mandonut is actually right. There is a right triangle inside the cone.

Answer 8

Oops, I'm terrible at math.
Sorry!

Answer 9

Do you see now?

Answer 10

Noooo :P

Answer 11

Do you see how that is a right triangle inside the cone?

Answer 12

Oh, yes, I thought you meant do I get the answer.

Answer 13

Yeah. From there, use Pythagorean Theorem:
\[c^2 = a^2 + b^2\]\[c^2 = 40^2 + 30^2\]Find c and that is your answer :)

Answer 14

I got 2500 as c^2.

Answer 15

Ok. Now find the square root.

Answer 16

50

Answer 17

Yup. 50 is your answer.

Answer 18

See? Math is not eville :)

Answer 19

You got it?

Answer 20

It is awful.

Answer 21

Not really...once you get the concept, it's easy :)