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Answer:
8%
Step-by-step explanation:
Its still 8% of her money
Answer:
The answer is 117.3 
.
Step-by-step explanation:
To solve for the volume of the cone, use the cone volume formula, which is V = 
.
Next, plug in the information given from the problem, and the formula will look like V = 
.
Then, solve the equation, and the answer will be 117.3 .
Since you need a little bit of trigonometry to solve this problem,
I'm pretty sure you've had a little bit of trigonometry in class before
you were assigned to solve this problem.
-- The shaded triangle comes from taking the equilateral triangle and
either folding it in half or cutting it in half.
-- The base that the new triangle is standing on is 1/2 the base of the
equilateral triangle, so it's 7 cm long.
-- The acute angle at the right end of the base is the same as it was in
the equilateral triangle . . . 60 degrees.
-- The tangent of 60 degrees is (opposite side)/(adjacent side) = x / 7 cm
tan(60) = x/7
-- Multiply each side of this little equation by 7 : 7 tan(60) = x
If you don't have the tangent of 60 degrees in your pocket, you can
find it with your calculator. Multiply it by 7, and Shazam, you know 'x' .
