The volume of a cone is 251.2 cubic inches. The height of a cone is 15 inches. What is the radius of the cone rounded to the nearest inch? Use n = 3.14.
A. 16 inches
B. 8 inches
C. 6 inches
D. 4 inches
Pls only serious answers
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15
6 inches
volume of a cone is 251.2 cubic inches. the height of the cone is 15 inches.
what is the radius of the cone, rounded to the nearest inch? use π = 3.14. ...
the radius of the cone, rounded to the nearest inch? use π = 3.14. 16 inches ...
(for convenience, let's say that the nth passenger in line has a ticket for the seat number n.) ...
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Step-by-step explanation:
To find the surface area of a cone, we need to calculate the area of the circular base and the side and add them together.
The formula for finding the area of a circle is
A=πr2
, where
r
is the radius of the circle. We use this formula to find the area of the circular base.
The side of the cone is actually a piece of a circle, called a sector. The size of the sector is determined by the ratio of the cone’s radius to its slant height, or
rs
.
To find the area of the sector, we take the area of the portion of the circle.
A=πr2⋅sr
This simplifies to
πrs
.
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