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Mathematics 18 Online
OpenStudy (anonymous):

Find if a = 34, b = 28 and c = 15

OpenStudy (anonymous):

Is this a triangle?

OpenStudy (anonymous):

what to find?

OpenStudy (anonymous):

measure of a angle?i guess

OpenStudy (anonymous):

|dw:1336622259075:dw|

OpenStudy (anonymous):

then.. you must use the law of cosines a^2=b^2+c^2 -2bc(cos(A))

OpenStudy (anonymous):

Yeah its a triangle

OpenStudy (anonymous):

is'nt it helpful @RebeccaB

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