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ipn [44]
3 years ago
11

Harold uses a cone shaped feeder, with a diameter of 7.5 centimeters and a height of 3.5 centimeters, to feed his tropical fish.

How many cubic centimeters of feed can this feeder hold? Use 3.14 for pi. Enter your answer in the box as a decimal rounded to the nearest tenth
Mathematics
2 answers:
Jlenok [28]3 years ago
8 0
This requires you to find the volume of the cone.
The volume of a cone is 1/3 the area of the base (a circle) times the height of the cone, or 1/3(3.14)r^2 * h.

The radius of the base is 7.5/2 or 3.75.

V = 1/3(3.14 * 3.75^2) * 3.5

V = 1/3(44.16) * 3.5

V = 1/3*154.56

V = 51.5 cm^3 of feed
PtichkaEL [24]3 years ago
8 0

Answer:

51.5\ cm^{3}

Step-by-step explanation:

step 1

Find the volume of a cone

we know that

The volume of a cone is equal to

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

we have

r=7.5/2=3.75\ cm -----> the radius is half the diameter

h=3.5\ cm

substitute the values

V=\frac{1}{3}(3.14)(3.75^{2})(3.5)=51.5\ cm^{3}

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