2 years ago

If ABCA-QRS, what must be the measure of <A

1 answer:

7 0

Answer:

m<A is 33

Step-by-step explanation:

126+21+x=180

147+x=180

180-147=x

x=33

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Answer:

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The Law of Sines is given by $\frac{a}{\sin A}=\frac{b}{\sin B}=\frac{c}{\sin C}$ and works for any triangle.

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$\frac{c}{\sin 41.5^{\circ}}=\frac{37}{\sin 42^{\circ}},\\\\c=\frac{37\sin 41.5^{\circ}}{\sin 42^{\circ}}=36.6399945706\approx \boxed{36.64}$

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If ABCA-QRS, what must be the measure of <A​