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Mathematics 15 Online
OpenStudy (nightmarenight):

@Daniellelovee attached below

OpenStudy (nightmarenight):

OpenStudy (daniellelovee):

C=pi(r)2

OpenStudy (nightmarenight):

r?

OpenStudy (daniellelovee):

r=radious

OpenStudy (nightmarenight):

8

OpenStudy (daniellelovee):

|dw:1422336171530:dw|

OpenStudy (daniellelovee):

yes 8pi

OpenStudy (daniellelovee):

ok now they are giving you the diameter and r=d/2

OpenStudy (daniellelovee):

and the area of a circle is pi(r^2)

OpenStudy (nightmarenight):

so the answer is 16?

OpenStudy (daniellelovee):

no

OpenStudy (nightmarenight):

the answer is 8

OpenStudy (daniellelovee):

r=16/2=8 so pi(8^2) to the second power not times 2

OpenStudy (nightmarenight):

oh we're on #9 right? so 64

OpenStudy (daniellelovee):

yes and you are correct it is 64

OpenStudy (daniellelovee):

now for #10 pythagorean theorem

OpenStudy (daniellelovee):

which you said you knew how to do

OpenStudy (nightmarenight):

yeah, a^2 + b^2 = c^2

OpenStudy (daniellelovee):

yes so do that

OpenStudy (nightmarenight):

so would it be 15^2 + 20^2 ?@Daniellelovee

OpenStudy (nightmarenight):

@Daniellelovee

OpenStudy (daniellelovee):

yes

OpenStudy (daniellelovee):

and remember to sqrt the answer

OpenStudy (nightmarenight):

is got 25

OpenStudy (daniellelovee):

correct

OpenStudy (daniellelovee):

and now the next one is same except they are giving you c and a but not b

OpenStudy (nightmarenight):

how do i do that

OpenStudy (daniellelovee):

|dw:1422336891169:dw|

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