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Mathematics 19 Online
OpenStudy (anonymous):

URGENT! NEED HELP

rebeccaxhawaii (rebeccaxhawaii):

do you need help is that a question

OpenStudy (anonymous):

lmao that was an accident.. can you help me?;;

rebeccaxhawaii (rebeccaxhawaii):

i can surely try my best

OpenStudy (anonymous):

ahh, thank you so much! let me type it in.

OpenStudy (anonymous):

okay, so this is a two parter question; A circular picture is 8 inches in diameter. Part A What is the area of the picture in square inches? A. 4π square inches B. 8π square inches C. 16π square inches D. 32π square inches Part B A frame that is 2 inches wide surrounds the picture. What is the total area of the picture and the frame in square inches? A. 4π square inches B. 12π square inches C. 36π square inches D. 40π square inches

rebeccaxhawaii (rebeccaxhawaii):

ok so the diameter is 8

rebeccaxhawaii (rebeccaxhawaii):

the circle area formula is pi x radius^2

rebeccaxhawaii (rebeccaxhawaii):

the radius is half the diameter therefore making it 4

OpenStudy (anonymous):

i got that part, i really just needed help with the second!

rebeccaxhawaii (rebeccaxhawaii):

\[3.14 * 4^{2}\]

OpenStudy (anonymous):

is that the formula for the first or second problem..?

OpenStudy (anonymous):

ah wait nvm!!

rebeccaxhawaii (rebeccaxhawaii):

first im reading the second

OpenStudy (anonymous):

so..

OpenStudy (anonymous):

would the answer be 50.24?

rebeccaxhawaii (rebeccaxhawaii):

they are talking about a circular frame right ?

OpenStudy (anonymous):

in the first or second?

rebeccaxhawaii (rebeccaxhawaii):

nvm i think they are talking about a circle

rebeccaxhawaii (rebeccaxhawaii):

so we will add 2 inches to 4 because of the width

OpenStudy (anonymous):

oh, okay!

rebeccaxhawaii (rebeccaxhawaii):

so pi x 6^2

OpenStudy (anonymous):

so the answer is 113?

rebeccaxhawaii (rebeccaxhawaii):

yes

OpenStudy (anonymous):

thats not one of the choices.. is there another step or something?

rebeccaxhawaii (rebeccaxhawaii):

\[\Pi = 3.14\] and \[6^{2}\] is 36 so it is one of your choices

OpenStudy (anonymous):

uh.. thats for the second, though? what was the first?

rebeccaxhawaii (rebeccaxhawaii):

the second

OpenStudy (anonymous):

oh wait!

OpenStudy (anonymous):

was the first pi x 4^2?

rebeccaxhawaii (rebeccaxhawaii):

yes but you need to solve

OpenStudy (anonymous):

the answer to that would be 32, right?

rebeccaxhawaii (rebeccaxhawaii):

no u only need to simply 4^2 then include pi by it

OpenStudy (anonymous):

oh!! >_< i get it now

OpenStudy (anonymous):

thank you so much!

rebeccaxhawaii (rebeccaxhawaii):

no prob good luck

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