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NikAS [45]
3 years ago
11

Find the volume of a cone with a diameter of 7 inches and a height that is 4 times the radius. Use 3.14 for pi, and round your a

nswer to the nearest hundredth
Mathematics
2 answers:
Tatiana [17]3 years ago
7 0

Answer:

179.50 in^{3}

Step-by-step explanation:

The equation for volume of a cone is:

V=\pi *r^{2} *\frac{h}{3}

The radius is half of the diameter so r= 3.5 in

The height is 4 times the radius so h=14

V=3.14*3.5^{2} * \frac{14}{3}

V= 179.50 in^{3}

xenn [34]3 years ago
4 0

Answer: 180 inch

Step-by-step explanation:

V=\frac{1}{3}\pi r^2h

\pi = 3.14\\diameter=7inch\\radius=\frac{d}{2}=\frac{7}{2}=3.5inch \\height = 4r=4(3.5)=14inch

V=\frac{1}{3} (3.14)(3.5)^2(14)\\V= 179.50\\V=180inch

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