lbelle
13.04.2020 •
Mathematics
9 inches
The diagram shows a pinwheel sold at the state fair.
What is the circumference of the pinwheel?
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Ответ:
The equation for circumference is pi x diameter.
So assuming the 9 inches is the diameter:
Pi x 9 = 28.2743339
Circumference = 28.274 (3 d.p.)
Ответ:
Volume of a cone is equal to pi * r^2 * h/3.
In this case:
pi * 6^2 * 9/3
pi * 36 * 3
108pi
339.3