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Mathematics 15 Online
Gucchi:

geometry help

Gucchi:

1 attachment
Gucchi:

am i right with C? here or is it D

Gucchi:

@vocaloid

Vocaloid:

you need to visualize this, but to turn a circle into a sphere, it needs to be rotated about its *diameter*. between C vs. D which is the *diameter* of the circle?

Gucchi:

wait

Vocaloid:

notice that a horizontal line through 1 passes through the diameter of the circle. what would the equation of that line be?

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