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If m RST = (12x - 1) , m RSU = (9x - 15) , and m UST = 53 , what is m RST

If m RST = (12x - 1) , m RSU = (9x - 15) , and m UST = 53 , what is m RST-example-1
User Zec
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1 Answer

14 votes
14 votes

We have the following:


\begin{gathered} 12x-1-53=9x-15 \\ 12x-9x=1+53-15 \\ 3x=39 \\ x=(39)/(3)=13 \end{gathered}

therefore:

RST:


12\cdot13-1=155

therefore RST is 155°

User Lars Graubner
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