If r = 13 units and h = 8 units, then what is the volume of the cylinder?

Mathematics

2 answers:

In-s [12.5K]3 years ago

5 0

there must be a typo either in the question or answers

to find the volume of a cylinder ⇒ $V=\pi r^{2} h$

therefore

$V= \pi (13)^{2} 8$

the volume should be ≈4247.43 which is not one of the provided answers

lubasha [3.4K]3 years ago

3 0

Answer:b

Step-by-step explanation: I am aware that is not what the real response is but its what study island says it is. The real response would be 4,247.433.

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egoroff_w [7]

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3 years ago

How do I do this? Help!

Hitman42 [59]

Notice the picture below

you have two triangles, and you have the opposite and adjacent sides

thus, recall your SOH CAH TOA $\bf sin(\theta)=\cfrac{opposite}{hypotenuse}
\qquad \qquad 
% cosine
cos(\theta)=\cfrac{adjacent}{hypotenuse}

\\ \quad \\\\
% tangent
tan(\theta)=\cfrac{opposite}{adjacent}$

anyhow.. the one that has only
the angle
the opposite
and the adjacent

is Ms Tangent, so lets ask her some

$\bf tan(29^o)=\cfrac{x}{y}\implies y\cdot tan(29^o)=x
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tan(25^o)=\cfrac{x}{100-y}\implies (100-y)tan(25^o)=x\\\\
-----------------------------\\\\
x=x\qquad thus\qquad y\cdot tan(29^o)=(100-y)tan(25^o)$

solve for "y"