This is Geometry: Find the volume, to the nearest hundredth, of a cone with a slant height 13 feet and radius 5 feet.…

Question

owlfred · Answer

Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

amistre64 · Answer

well;

$$V_{cone}=(1/3)(base.area)(height)$$

amistre64 · Answer

base area is a circle so pi 5^2 = 25pi

height has to be calculated for a rt tri with leg5 and leg13

bbb911 · Answer

why are people stealing my question???

anonymous · Answer

simply plug in the given values into the equation: $$V=1/3(\pi)(r^2)((h)$$

anonymous · Answer

thankyou amistre

amistre64 · Answer

sqrt(196+25) = sqrt(221) if i did it right

amistre64 · Answer

youre welcome :)

anonymous · Answer

well bbb i proved u right again u were too ugly so no one answered u

amistre64 · Answer

13^2 = 169 ...tho right lol

bbb911 · Answer

here is the muliple choice for that question

bbb911 · Answer

no lmao ur just jealous so go shave urself

amistre64 · Answer

169
+25
----
194

sqrt(194) = height then

amistre64 · Answer

openstudy rule of answering #112:  If a question remains unanswered for .002 secs, it becomes free for any and all participants ;)

bbb911 · Answer

A. 136.14 ft cube B. 314.16 ft cube C. 340.34 ft cube D. 408.141 ft cube

amistre64 · Answer

$$V_{cone}=\frac{25pi.\sqrt{194}}{3}$$ if I did it right ...

bbb911 · Answer

so im guessing nobody knows the answer to the question

amistre64 · Answer

there was a question?

bbb911 · Answer

the question that stupid lmao put was originally mine not his or hers. and i put the multiple choice to prove it was mine

amistre64 · Answer

ohhh.... someone pilfered your q ... got it.

amistre64 · Answer

so; base area = 25pi; height = sqrt(13^2+5^2)

Vcone = [25pi * sqrt(194)]/3 = abt 364.64...

bbb911 · Answer

sooooo close its either C or D ... C is 340.34 ft cube and D. is 408.41 ft cube

amistre64 · Answer

check to make sure all the info is right; you got a slant of 13 and a rad of 5?

amistre64 · Answer

i see my mistake then

amistre64 · Answer

$$h^2 + 5^2 = 13^2$$
$$h=\sqrt{(169-25)}$$
\[\h = \sqrt{144}=12]

amistre64 · Answer

.... h = 12

25pi*12
------ = 25pi *4 = 100pi, abt 314.16
    3

bbb911 · Answer

yes and that is correct thank you sooo much

amistre64 · Answer

had to fight it tooth and nail, but I got it :)

bbb911 · Answer

i know you did a good good and you got urself another fan :D

amistre64 · Answer

:) thnx

bbb911 · Answer

ur welcome :D