2 Answers

PrettyInPink · Answer 1 · 2024-09-29T20:26:29+0000

Answer:

Explanation:

Formula for a cone:

V = 1/3
$\pi$ r² h

Given:

$\pi$ = 3.14

h= 12

Solution:

We need to find r to plug into formula

We can find r using pythagorean theorem on the triangle

c²=a²+b² c is always the hypotenuse, longest side

15² = 12² + r²

225 = 144 + r²

r² = 81

r=9

V = 1/3
$\pi$ r² h

V = 1/3 (3.14)(9²)(12)

V= 1017.36

B) Mario is wrong. He used 15 as his radius not 9.

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