Question

A right cylinder has a circumference of 16π cm. Its height is half the radius. Identify the lateral area and the surface area of the cylinder rounded to the nearest tenth.

Answer 1

the explanation is a little long

Answer 2

Oh... alright. It's just how it's shown for me.

Answer 3

divide 16 pi by 2 to get the radius

Answer 4

8

Answer 5

to get height is half the radius

Answer 6

4?

Answer 7

yes, you are a fast learner

Answer 8

which one should i get first the lateral area or the surface area

Answer 9

Lateral.

Answer 10

ok

Answer 11

AL=2πrh

Answer 12

2*rh only right? and then just add pi afterwards, right?

Answer 13

it depend on your question.

Answer 14

This one.

Answer 15

show me the picture of the real question

Answer 16

That is the real question. Look; A right cylinder has a circumference of 16π cm. Its height is half the radius. Identify the lateral area and the surface area of the cylinder rounded to the nearest tenth.
L = 100.5 cm2 ; S = 401.8 cm2
L = 201.1 cm2 ; S = 603.2 cm2
L = 201.1 cm2 ; S = 401.8 cm2
L = 100.5 cm2 ; S = 603.2 cm2

Answer 17

good

Answer 18

AL≈201.1

Answer 19

so multiply it with the pi

Answer 20

and tell me the answer

Answer 21

dont forget we want to get the lateral area

Answer 22

I wrote it out on paper. For the answer I got 631,454

Answer 23

when you multiply it?

Answer 24

Yes.

Answer 25

You said take 201.1*3.14, didn't you? That's what I get for that.

Answer 26

no that 201.1 that was the answer

Answer 27

i gave you so that you would check it with your answer

Answer 28

Oh......

Answer 29

these is the formula for lateral area =AL=2πrh

Answer 30

r=8, h=4

Answer 31

2x34?

Answer 32

68?

Answer 33

now fix in the number and multiply

Answer 34

2 x pi x 4 x 8=

Answer 35

136,748

Answer 36

6.28x32?

Answer 37

do you multiply 2 x pi x 4 x 8=

Answer 38

20,176

Answer 39

is what i got now.

Answer 40

pls try it again

Answer 41

192

Answer 42

24x8=192

Answer 43

go to google and use the calculator

Answer 44

and multiply it with pi and not 3.14

Answer 45

201.06

Answer 46

okay now you got

Answer 47

that is the answer for lateral area

Answer 48

in your answer it was approximated and it change to 201.1

Answer 49

Yeah.

Answer 50

to let you know the and is B

Answer 51

L = 201.1 cm2 ; S = 603.2 cm2

Answer 52

surface area 603?

Answer 53

now let get the surface area

Answer 54

i was thinking that, but wasn't sure.

Answer 55

do you know the formula for surface area

Answer 56

For a cube, or something easier, yes.

Answer 57

no

Answer 58

I usually don't remember them always off the top of my head.

Answer 59

A=2πrh+2πrsquare

Answer 60

so i would brake it down A= 2 x pi x 8 x 4 + 2 x pi x 8 x 8

Answer 61

256..

Answer 62

and you would first do the multiplication before you do the addition

Answer 63

try again and use google calculator and don't forget you would first do the multiplication before you do the addition

Answer 64

and use pi and not 3.14

Answer 65

Okay.

Answer 66

603.185789489

Answer 67

correct now approximate it to the nearest tenth

Answer 68

and tell me the answer

Answer 69

603.2

Answer 70

correct, now you are master geomatry

Answer 71

good luck, and which school are you from

Answer 72

Liberty.

Answer 73

and again if you do not understand let me know i am not leaving

Answer 74

liberty what?

Answer 75

Online academy.

Answer 76

is it in va

Answer 77

Liberty university.

Answer 78

is it in virginia

Answer 79

It's an online course that I wanted done a long time ago. I believe so.

Answer 80

so what time do you finish high school

Answer 81

I was supposed to be graduated already. I was an AP student for a very long time. Always ahead until the death of my mother. After that I got night terrors, ended up with epilepsy that I still have to this day.

Answer 82

My major was in psychology.

Answer 83

oooh, am so sorry

Answer 84

The questions you helped with? They were to be done 3 years ago, I just didn't manage.

Answer 85

what?

Answer 86

Yep...

Answer 87

bye, to let you know i'm still in high school i am just really good in math

Answer 88

Wow. Congrats! Thanks for the help, once again.

Answer 89

anytime

Answer 90

and are you in virginia

Answer 91

No, Colorado.

Answer 92

okay, good luck .

Answer 93

Yeah. It's hard with seizures and cancer. Thanks though! do you have to go now?

Answer 94

who is with cancer

Answer 95

I suffer it in my stomach intestines. It has it to where my stomach doesn't digest properly, and it hurts constant.

Answer 96

I'd rather not get into that.

Answer 97

go on

Answer 98

It's a very emotional topic to get into. That's why I'd rather not.