jhick9279
26.02.2021 •
Mathematics
Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AC=19 and DC=4, what is the length of BC in simplest radical form?
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Ответ:
45/2=22.5:(radius)
22.5^2=506.25:(r^2)
pi 506.25=1590.43:(pi r^2)
1590.43*15=23856.45:(pi r^2h)
1/3*23856.45=7952.15:(1/3(pi r^2h))
V= about 7952.15
A) 7948