hi i am stuck at this question I don't know how to solve it

[diavlo]

question:
A six-inch-diameter snowball that melts loses a half-inch of its diameter.
Calculate how much surface area and volume it has lost.

 

[Deleted member 4993]

question:
A six-inch-diameter snowball that melts loses a half-inch of its diameter.
Calculate how much surface area and volume it has lost.

Please show us what you have tried and exactly where you are stuck.

Please follow the rules of posting in this forum, as enunciated at:

READ BEFORE POSTING​

Please share your work/thoughts about this problem.

 

[diavlo]

i have never studied a question like that its the first time i see an example like that and i don't know how to solve it i posted this thread hoping someone knows how to solve it

 

[blamocur]

i have never studied a question like that its the first time i see an example like that and i don't know how to solve it i posted this thread hoping someone knows how to solve it

Look up the formulas for the volume and the surface of a sphere.

 

[Otis]

i don't know how to solve it

Calculate the surface area of a sphere with a 6-inch diameter.

Subtract 1/2 inch from the diameter, and calculate the new surface area.

Subtract the new surface area from the original surface area.

The result is the amount of surface area lost to melting.

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Calculate the volume of a sphere with a 6-inch diameter.

Subtract 1/2 inch from the diameter, and calculate the new volume.

Subtract the new volume from the original volume.

The result is the amount of volume lost to melting.

---

If you need more help, then please post how far you got. Thanks!

?

PS: If your surface-area and volume formulas use radius instead of diameter, then you must convert diameter to radius before using the formulas. Radius is one-half the diameter. Also, don't use a calculator for pi unless you've been instructed to round your answers. Report exact answers, instead, using the symbol [imath]\pi[/imath].

[imath]\;[/imath]

 

[diavlo]

thanks for your replay,I've done that already but my problem is my teacher told me i have to solve it with (related rates) formula.

 

[Dr.Peterson]

thanks for your replay,I've done that already but my problem is my teacher told me i have to solve it with (related rates) formula.

This is not a related rates problem; in fact, there is no mention of rates.

I suspect that this is only part of a problem, another part of which involves rates. Please show the entire problem, including instructions.

 

[Deleted member 4993]

thanks for your replay,I've done that already but my problem is my teacher told me i have to solve it with (related rates) formula.

Please share your work!

Calculate the surface area of a sphere with a 6-inch diameter.

What was the result?

Subtract 1/2 inch from the diameter, and calculate the new surface area

What was the result?

and so on......