A hemispherical bowl of radius r contains water to a depth height h. Give a formula that you can use to measure the volume of the water in the bowl.
I would use integration consider a semi-circle.
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Let be the height i.e. distance from the endpoint on semicircle. Then what distance from the origon is .
Thus, the volume by revolving about the x-axis is given by,
Note: LaTeX (equation editor) is currectly disabled. In a few days these strange symbols I wrote down should turn into equations. If you know LaTeX you can follow this still.