Find the length of missing side of the triangle below.

Find the length of missing side of the triangle below.

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1 Answer

yukan yuze triangel sine law

(side length) / (angel over theer)=konstant

yu sho 1 angel =56deg kros from side leng=10

so konst=10/ sine(56)= 10/0.829037572=12.06217948

differ angel=43 deg, so side kros from it (perhaps b)

then b/sine(B)=a/sine(A)=konst

so b=konst*sine(B)=konst*sine(43)=12.06217948*0.68199836

=8.226412854

angel C=180-(56+43)=180-99=81 det

side c=sine(81 deg)*konst=0.98768834*12.06217948

=11.91367403
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