Answer:
62
Step-by-step explanation:
so because the triangle going through the center it classifieds as a right triangle which makes angle SRT = 90 degree
three angle of a triangle add up to 180
so we have SRT + RTS + RST = 180
we have SRT
=> 90 + RTS + RST = 180
=> 90 + (3x -25) + (x - 1 ) = 180
=> 90 + 4x -26 = 180
=> 64 + 4x = 180
=> 4x = 116
=> x = 29
now u have x , just plug in and solve
