in a triangle ABC, mA=45, mB 40, and a=7. which equation sould you solve to find B?

Question

in a triangle ABC, mA=45, mB 40, and a=7. which equation sould you solve to find B?

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Raelynn 1 month 2021-10-20T21:43:04+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-20T21:44:10+00:00

    Answer:

    Sin45/7 = sin40/b

    Step-by-step explanation:

    😀

    0
    2021-10-20T21:44:24+00:00

    Answer:

    \frac{sin(45^o)}{7}=\frac{sin(40^o)}{b}

    Step-by-step explanation:

    The correct question is

    In a triangle ABC, m∠A=45°, m∠B 40°, and a=7. which equation should you solve to find b?

    we know that

    Applying the law of sines

    \frac{sin(A)}{a}=\frac{sin(B)}{b}

    substitute the given values

    \frac{sin(45^o)}{7}=\frac{sin(40^o)}{b}

    solve for b

    b=(7)sin(40^o)/sin(45^o)

    b=6.4\ units

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45:7+7-4:2-5:5*4+35:2 =? ( )