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Mathematics 10 Online
OpenStudy (anonymous):

find x

OpenStudy (anonymous):

|dw:1402440422322:dw|

OpenStudy (anonymous):

is that a 45, 45, 90 triangle?

OpenStudy (anonymous):

90

OpenStudy (anonymous):

so yes or no? or is 90 the only angle given?

OpenStudy (anonymous):

90 is the only angle given

OpenStudy (anonymous):

ok then just use pythagorean theorum \[a ^{2}+b ^{2}= \] C being the longest side

OpenStudy (anonymous):

the answer have to be 6,9,12

OpenStudy (anonymous):

ill solve it but lets go through the steps ok?

OpenStudy (anonymous):

ok im so bad in math

OpenStudy (anonymous):

\[a ^{2}+b ^{2}= c ^{2}\] \[x ^{2}+12^{2}= 15 ^{2}\] \[x ^{2}= 15^{2}-12^{2}\] \[x= \sqrt{15^{2}-12^{2}}\] \[x=9\]

OpenStudy (anonymous):

got it?

OpenStudy (anonymous):

oh I think I got it now it look so easy but watch when I try yo do it ti want look like that

OpenStudy (anonymous):

lol its ok

OpenStudy (anonymous):

can u be here wen I no the next one

OpenStudy (anonymous):

sure

OpenStudy (anonymous):

thxhere I go

OpenStudy (anonymous):

welcome

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