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selamh1999
30.06.2019 •
Mathematics
(very easy) find the volume. round to the nearest tenth if necessary.
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Ответ:
410.5 yards cubed
Step-by-step explanation:
Volume of a cone is 1/3Bh
h is the height of the cone
B is the area of the base, which is a circle, so use πr^2 to find area of the circle
The radius is 7, so:
π7^2
π49(8)(1/3) = 410.5
Ответ:
Step-by-step explanation:
Equation
Volume = (1/3) * pi * r^2 * h
Givens
pi = 3.14
r = 7 yd
h = 8 yd
Solution
V = (1/3) * 3.14 * 7^2 * 8
V = (1/3) * 3.14 * 49 * 8
V = (1/3) * 1231.5
V = 410.5 cubic yds.
Ответ:
If this figure is symmetric (as it seems to be) then is invariant to rotations of 90° in the plane where the center of each segment coincides with an axis, and when the axis of rotation is on the center of the figure.
So the rotation of 0°, the rotation of 90° and the rotation of 180° are possible solutions.
Here 180° because if you rotate the figure by 90° two times, you get 180°.