Finding the side and angle of a triangle.The following diagram shows the triangle ABC. A B = 6 c m , B C = 10 c m , and A B ^ C = 100 ∘

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Finding the side and angle of a triangle.The following diagram shows the triangle ABC.  A  B  =  6  c  m  ,  B  C  =  10  c  m  ,  and     A            B      ^        C  =      100    ∘

plomet6a · Accepted Answer

Step 1We can also do this. We know through sine law:                    A        C                    sin        ⁡        (        ∠                  A          B          C                )              =                  A        B                    sin        ⁡        (        ∠                  B          C          A                )            Step 2      ∠          B      C      A        =          sin              −        1              ⁡          (                        A          B          ∗          sin          ⁡          (          ∠                      A            B            C                    )                          A          C                    )

Eliza Gregory · Accepted Answer

Step 1            (      36      +      100      −      (      (      2      ∗      6      ∗      10      )      ∗      cos      ⁡              (        100        )            )      )        =      12.5235  Step 2            sin              −        1              ⁡          (                        6          ∗          sin          ⁡          (          100          )                12.5235            )        =      28.16          °

Finding the side and angle of a triangle. AB=6cm, BC=10cm, and A\hat{B}C=100^circ

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