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Salsk061 [2.6K]
3 years ago
14

The volume of a cone with a radius of 7 cm is 147 pie cubic centimeters. What expression can be used to find h, the height of th

e cone
please try to hurry is suck at math
Mathematics
2 answers:
Deffense [45]3 years ago
6 0
We know that
volume of a cone=(1/3)*pi*r²*h
clear variable h
volume=(1/3)*pi*r²*h-----> multiply by 3
3*volume=pi*r²*h----> divide by (pi*r²)
3*volume/(pi*r²)=h
h=3*volume/[pi*r²]

in this problem
volume=147*pi cm³
r=7 cm
so
h=3*[147*pi]/[pi*7²]-----> h=3*147/49----> h=9 cm

the answer is
the expression that can be used for calculate the height of the cone is
h=3*volume/[pi*r²]
the height of the cone is h=9 cm
Fantom [35]3 years ago
3 0

Answer:

<h2>B</h2>

Step-by-step explanation:

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