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Mathematics 15 Online
kekeman:

Help please: https://snipboard.io/gpeLnT.jpg

jhonyy9:

so just you need to know formula for area of a circle what is the base of a cone check please Paul or Manuel know this formula correct

jhonyy9:

Paul have wrote base area of cone = pi*d Manuel have said base area of cone = pi*r^2 what is right ?

bbacobe:

The first one

jhonyy9:

formula for area of a circle what is ?

jhonyy9:

pi*d = pi*2r = ? is formula for what of a circle ?

kekeman:

So who was right

jhonyy9:

pi*d is formula for circumference of a circle not for area of a circle

kekeman:

Yes true

kekeman:

So which is the correct answer

jhonyy9:

who have wrote pi*d for base area of a cone ? so this is false

jhonyy9:

do you see it now ? who is right ?

jhonyy9:

so if Paul said base area of a cone is pi*d what mean this ? he is right ?

kekeman:

No that means he is wrong

kekeman:

Was i right?

kekeman:

If u still there could u help me with something else

jhonyy9:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @kekeman No that means he is wrong \(\color{#0cbb34}{\text{End of Quote}}\) yes exactly

kekeman:

So the answer is " Manuel's argument is correct; Paul used the incorrect base area to find the volume of square pyramid X."

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