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Mathematics 9 Online
OpenStudy (anonymous):

solve the triangle A=50^degrees, a=15, b=12

OpenStudy (mathstudent55):

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OpenStudy (mathstudent55):

Since you have one angle and its opposite side, that is enough to establish one ratio in the law of sines. With that you can find B. Then 180 - A - B = C Then use the law of sines again to find c.

OpenStudy (anonymous):

for B i got -.210 is this right?

OpenStudy (mathstudent55):

How can an angle measure be a negative number?

OpenStudy (mathstudent55):

What equation did you use?

OpenStudy (anonymous):

i used the law of sines sin(A)/a Sin(B)/b

OpenStudy (anonymous):

i think i need to arcsin the answer but it turns into a negetive as well

OpenStudy (anonymous):

i was in radians

OpenStudy (mathstudent55):

Show me your equation using the law of sines.

OpenStudy (anonymous):

its 37.7???

OpenStudy (mathstudent55):

yes

OpenStudy (anonymous):

thank you

OpenStudy (mathstudent55):

wlcm

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