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natta225 [31]
3 years ago
13

Please help me with this ASAP ASAP please please help

Mathematics
2 answers:
Tanzania [10]3 years ago
8 0

Step-by-step explanation:

The lateral area is formula for a cylinder is

2\pi \times r \times h

where r is radius and h is height.

2\pi \times 8 \times 3 = 48\pi

The surface area of cylinder is

2\pi \times  {r}^{2}  + 2\pi \times r \times h

2\pi(64) + 2\pi(24)

128\pi + 48\pi

176\pi

Volume of cylinder is

\pi \times  {r}^{2}  \times h

\pi \times 64 \times 3

192\pi

elena55 [62]3 years ago
5 0

Answer:

Step-by-step explanation:

Lateral area is the sides so for this it's  distance around x 3 . b/c the cylinder is 3 units tall... sooo

r= radius  ,  d= diameter

circumference = distance around = 2\pir  or d\pi = 16\pi  

Lateral area is 16\pi*3 = 48\pi

Surface area is the lateral area + the top and bottom

the area of a circle is \pir^{2}

the area of this circle for the top is \pi8^{2}

64\pi

times 2 b/c there is also a top and a bottom

128\pi + 48\pi = 176\pi

surface area is 176\pi  units^{2}

Volume of a cylinder is area of the circle base times the height.  

the base is 64\pi

time 3 = 192\pi units^{3}

Volume is 603.1857 units^{3}

note that two of  the answer include pi,  but you have that already put in for you in the answer so leave that part off.  

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