Question

1. if (mangle rst=(12x - 1)^{circ}), (mangle rsu=(9x - 15)^{circ}), and (mangle ust = 53^{circ}), find each measure.

equation: 17
(x=) 18
(mangle rst=) 19
(mangle rsu=) 20

Explanation:

Answer:

(17) \(m\angle RST=m\angle RSU + m\angle UST\); \(12x - 1=(9x - 15)+53\)
(18) \(x = 13\)
(19) \(m\angle RST = 155^{\circ}\)
(20) \(m\angle RSU = 102^{\circ}\)