Supposing that these two angles are opposite by the same vertex S, and solving the equations, it is found that the measure of angle RSL is of 144º.
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[tex]RSL = BSA[/tex]
We have that:
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Applying the equality, we find x, thus:
[tex]RSL = BSA[/tex]
[tex]9x + 27 = 6x + 66[/tex]
[tex]9x - 6x = 66 - 27[/tex]
[tex]3x = 39[/tex]
[tex]x = \frac{39}{3}[/tex]
[tex]x = 13[/tex]
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With x, it is possible to find the measure of angle RSL.
[tex]RSL = 9x + 27 = 9(13) + 27 = 117 + 27 = 144[/tex]
Thus, the measure of angle RSL is of 144º.
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