NeoPets Riddles (Lenny Conundrums) and Answers Here

mommytbe wrote:

OK BEFORE WE CAN GET THE RIGHT ANSWER, WE NEED TO ALL AGREE ON HOW MANY YEARS THERE HAVE BEEN!

There have been 9 NYE (first one was 1/1/2000) So there have been 8 years of growth.

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quote]

the diameter is 68.7079..., the radius isn´t 34.35???[/quote]

No, the circumference (perimeter) of the base was 68.7079. circ=2pir so radius is circ/2*pi. I think Question

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K... for the area of the base... I get 1180.1938 square cm

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[the diameter is 68.7079..., the radius isn´t 34.35??? ]

No, that isn't what we said before. I believe that the 68.7079 is cirfumerence so the diameter would be 21.88 and that would make the radius 10.94. Am I correct on this?

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New Years EVE, not day.

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tonialiani wrote:

No, the circumference (perimeter) of the base was 68.7079. circ=2pir so radius is circ/2*pi. I think

:O ok im confuse the circunference whit diameter sorry Embarrassed

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bullzeye150 wrote:

K... for the area of the base... I get 1180.1938 square cm

is area of the base 1/3 pi r^2?

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andrewcomp wrote:

New Years EVE, not day.

Well, then the first NYE was 12/31/99 and the last was 12/31/07. That is still 8 years of growth. I get my days and nights mixed up Very Happy

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Radius = 10.93520207

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momcarrot wrote:

[the diameter is 68.7079..., the radius isn´t 34.35??? ]

No, that isn't what we said before. I believe that the 68.7079 is cirfumerence so the diameter would be 21.88 and that would make the radius 10.94. Am I correct on this?

That's exactly what I get, fwiw Confused

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radius= 10.935202070153
v=303422.614666
im ok?

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[Radius = 10.93520207 ]

OK, we agree. I just rounded mine off and perhaps I shouldn't have.

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area of the base... Pi x Radius squared...
3.1415926 x 10.93520207 squared

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Drago wrote:

radius= 10.935202070153
v=303422.614666
im ok?

im using all decimals, if v=303422.61cm³=1m³-(100cm)³=.303422614666
im ok?
plzz reply

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K... don't know where I went wrong the first time ... but area of base is 375.66737

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OK, I got my meters and centimeters mixed up. Now I come up with 1799021.4 kg as the mass (weight) of the tree as of 12/31/07.

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i get around 160kg Dx

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I got 8 years of growth (end of year 1 - end of year 9)

H = 124 * (1.45)^8 = 2423.068
C = 14 * (1.22)^8 = 68.71
C = pi * r^2

V = 1/3 (pi * r^2) * H = 1/3 * C * H
= 1/3 * C * H
= 1/3 * 68.71 * 2423.068
= 55496.33 cm^3
= .055496 m^3

W = V * 530
= .055496 * 530
= 29.41 kg

Thoughts?

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quote]

im using all decimals, if v=303422.61cm³=1m³-(100cm)³=.303422614666
im ok?
plzz reply[/quote]

My volume is a bit different (339437.99 cm^3), but to change it to m^3 wouldn't you just move the decimal 2 places to the left, making it 3394.3799 m^3?

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catmegz wrote:

C = pi * r^2

Nevermind - I messed up this line.

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