An angle whose vertex is at the center of a circle is a central angle of that circle.
2 answers:
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Answer:
The radius of the cone is
Step-by-step explanation:
we know that
The volume of a cone is equal to
In this problem we have
substitute in the formula and solve for r
Simplify
square root both sides
Answer:
<em>12 </em><em> + 28 </em>
<em> - 60 r³ + 28 r² </em>
Step-by-step explanation:
a(b ± c) = ab ± ac (distributive property)
2r²(6r³ + 14r² - 30r + 14) = <em>12 </em><em> + 28 </em>
<em> - 60 r³ + 28 r²</em>