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LenaWriter [7]
3 years ago
11

Find the surface area of the cylinder and round to the nearest tenth and its recommended that you use pie or 3.14 also the radiu

s is half the diameter

Mathematics
2 answers:
larisa86 [58]3 years ago
7 0

\begin{gathered} {\underline{\boxed{ \rm { \purple{Surface \:  \:  area \:  =  \: 2 \: \pi \: r \: h \:  +  \: 2 \: \pi \:  {r}^{2} }}}}}\end{gathered}

  • r represents radius of cylinder.

  • h denotes height of cylinder.

<h2><u>Solution</u> </h2>

\large{\bf{{{\color{navy}{h \:  =  \: 2 \: ft. }}}}}

\bf \large \longrightarrow \: \: r \:  =  \:  \frac{Diameter}{2}

\bf \large \longrightarrow \: \: r \:  =  \:  \frac{2}{2}  \\

\bf \large \longrightarrow \: \: r \:  =  \:   \cancel\frac{2}{2} \:  ^{1}   \\

\large{\bf{{{\color{navy}{r \:  =  \: 1 \: ft. \: }}}}}

<h3 /><h3>☛ Now , Substuting the values</h3>

\bf  \hookrightarrow \: \: \: 2 \:  \times  \: 3.14  \times \: 1 \: ft  \:  \times \: 2 \: ft \:  +  \: 2 \:  \times  \: 3.14 \:  \times  \:   {(1 \: ft)}^{2}

\bf  \hookrightarrow \: \: \:6.28 \: ft \:  \times  \: 2  \: ft\:  \:  +  \: 6.28 \: ft

\bf  \hookrightarrow \: \: \:12.56 \: {ft}^{2}   \:  +  \: 6.28 \: ft

\bf  \hookrightarrow \: \: \:18.84 \:  {ft} \: ^{2}

Hence , the surface area of cylinder is 18.84 ft²

Round to the nearest 10 of 18.84 is 18.8

VARVARA [1.3K]3 years ago
5 0

Diameter=d=2ft

  • Radius=d/2=2/2=1ft
  • Height=h=2ft

We know

\boxed{\sf Lateral\:Surface\:Area=2πrh}

\\ \sf\longmapsto Lateral\: Surface\:Area=2\times 3.14\times 2\times 1

\\ \sf\longmapsto Lateral\;Surface\:Area=4(3.14)

\\ \sf\longmapsto Lateral\:Surface\:Area=12.56ft^3

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<h3>What is probability?</h3>

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To learn more about the probability from the given link:

brainly.com/question/18638636

The above question is incomplete.

The conditional relative frequency table was generated using data that compared the outside temperature each day to whether it rained that day. A 4-column table with 3 rows titled weather. The first column has no label with entries 80 degrees F, less than 80 degrees F, total. The second column is labeled rain with entries 0.35, 0.3, nearly equal to 0.33. The third column is labeled no rain with entries 0.65, 0.7, nearly equal to 0.67. The fourth column is labeled total with entries 1.0, 1.0, 1.0. Given that it was less than 80 degrees F on a given day, what is the probability that it also rained that day?

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