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suter [353]
1 year ago
13

triangle rst is congruent with VST is shown. given Line st is the perpendicular bisector of line RV prove triangle rst is congru

ent to triangle VST what is the missing reason in the proof
Mathematics
2 answers:
cluponka [151]1 year ago
7 0

Answer:perpendicular bisector theorem

Step-by-step explanation:

Aleonysh [2.5K]1 year ago
7 0

Answer: A

Step-by-step explanation:

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Find b, given that a = 20, angle A = 30°, and angle B = 45° in triangle ABC
Kamila [148]
<span>The side b is opposite to the angle B, applying the law of the sines, we have:

</span>\frac{a}{sinA} = \frac{b}{sinB}
\frac{20}{sin30^0} = \frac{b}{sin45^0}
\frac{20}{ \frac{1}{2} } = \frac{b}{ \frac{ \sqrt{2} }{2} }
20* \frac{ \sqrt{2} }{2}  = b* \frac{1}{2}
\frac{20 \sqrt{2} }{2} = \frac{b}{2}
2*b =2*20 \sqrt{2}
2b = 40 \sqrt{2}
b =  \frac{40 \sqrt{2} }{2}
\boxed{b = 20 \sqrt{2} }
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garik1379 [7]
Since you didn't give the original picture, I can only explain the process. Then, you need to select the correct point.

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Step-by-step explanation:


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Step-by-step explanation:

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Answer:

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