Question

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

Answer 1

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°