Question

find the shaded area. When appropriate, use the pie key on your calculator and round your answer to the nearest hundredth.
5in
10 in-shaded area

Answer 1

i'm here! what is the question?

Answer 2

yes!

Answer 3

the shape is an flipped U ad the shaded part is 10in

-------
5in
----------
10in

Answer 4

okay, you want the area of that shape? what part is shaded?

Answer 5

boy, there's no one on here tonight! SO many unanswered questons!

Answer 6

yes i know

Answer 7

its the inner part and like i said its a U SHAPE

Answer 8

upside-down U....what is 5, the side or the radius?

Answer 9

Yes upside down the space is open and
is like this

( )
| |
|--- 5in ----- |
|----- 10in |

Answer 10

ahmmm....still doesn't help.....the bottom is open? are u trying to give me the shape?

Answer 11

yes

Answer 12

does it look like an archway with distance across the bottom 5 and height 10??

Answer 13

and is the entire shape shaded?

Answer 14

just the 10inch part

Answer 15

where's the 5?

Answer 16

the 5 is above the 10

Answer 17

hmm....you have an arch shaped figure....with a line across it near the top? is the shaded part below the line?

Answer 18

its basically an inner layer is shaded and
|-----------|
10 in

Answer 19

still not seeing it...do you have skype??

Answer 20

no i dont have that but my text book is online

Answer 21

Oh!! what's the address for it and I will look!

Answer 22

ok can u shoot me ur email

Answer 23

yes use lchapman@odu.edu

Answer 24

wait ok laurie

Answer 25

what it is is a half of circle

Answer 26

ok....like the end of track?

Answer 27

but inside the half of circle theres an lil circle like a donut shape if u think of a donut the also a hole like a lil circle shapin the inside

Answer 28

inside the circle is shaded which is 10 in the middle circle is 5 in

Answer 29

http://digitalbookshelf.southuniversity.edu/#/books/0558542549/pages/17256184

Answer 30

#28

Answer 31

this is taking a bit to get the site, etc....shouldn't be much longer

Answer 32

ok

Answer 33

what's the name of the book?

Answer 34

theres no name

Answer 35

did it take u to the book there u see angels?

Answer 36

I can't see the book....I created an account , but don't know where to go to from there....it wouldn't take me straight to the page etc.....do you have an account of something to get into the site? Or did you ahve to pay for the book?

Answer 37

think I have your picture though.....ok, is like a washer or donut cut in half with the "hole" being 5 inches across and the entire donut being 10 inches across?

Answer 38

no what is it taking u to a sign in?

Answer 39

the "book" site says I don;'t have a site license for A Survey of Mathematics with Applications

Answer 40

o i should have took u through the login but u pictured it correct

Answer 41

yes, I set up an account and did the download, but I don't have site license for this...okay...the picture is trght??

Answer 42

So from side to side is 10 inches, shown by -----10------- at the bottom of the picture, right?

Answer 43

yes to the pic

Answer 44

ok, it hung up for a minute.....start it this way, draw a complete donut or washer with a hole in the middle.....you

Answer 45

need to find the are of the donut .....it's a circle, so that is Area=pi r^2

Answer 46

the dia,meter of thefigure is 10, which means the radius is 5 (not the 5 given in the picture....so you'll have Area = pi 5^2.....now don't use the calculator pi button until the end of the problem....!

Answer 47

You with me?

Answer 48

now the area of a solid jelly donut looking picture is 25pi....

Answer 49

No you need to find the area of the hole that is cut out of the middle.....using the same area formula A=pi r^2 the distance across the "hole" is 5, so it's radius is 2.5, so plug into the formula and A (of the hole) =pi (2.5)^2

Answer 50

ok
can u write the steps with ur fromula so i would know how to write it all out step by step

Answer 51

okay ....look at this first....so now you need to subtract the 2 areas....25pi-(2.5)^2 pi

Answer 52

are you getting the idea of what I'm doing?

Answer 53

1. find the area of an entire circle or donut

Answer 54

2 find the area of the hole

Answer 55

3. subtract

Answer 56

Now cut the entire thing in half divid by 2

Answer 57

ok let me restart

Answer 58

my pc

Answer 59

ok.....Part One....A=pi r^2 (write the formula down first

Answer 60

I had to refresh mine a minute ago

Answer 61

plug in the info A= pi (5)^2
= pi 25 or 25 pi

Answer 62

next step or part of the problem A=pi (2.5)^2
= 6.25 pi (check my math, please! no calc here

Answer 63

Now, third part , subtrract the two Areas STILL withoug inputting pi
25-6.25 = 18.75 I think

Answer 64

NOW input pi.....so type in 18.75 and hit the pi button THEN divide by 2

Answer 65

you therer?

Answer 66

found the calculator....answer is 58.90486225.....now you need to round it to what the problem says to do....

Answer 67

thanx laurie i will tell u if its correct when graded

Answer 68

it was incorrect

Answer 69

my prof says to
find the area of the bigger semi-circle, subtract the area of the smaller semi-circle from it to get the area of the shaded region