The measure of RST and RSU are 39.43 and 13.52 respectively
Given the following parameters
RST is (12x-1)
RSU is (9x-15)
UST = 53 degrees
According to the addition rule;
RSU + UST = RST
Substitute the given parameters
12x -1 + 9x - 15 =. 53
21x - 16 = 53
21x =69
x = 69/21
x = 3.28
RST =12(3.28) - 1
RST = 39.43
For the measure of RSU
RSU = 9x - 15
RSU =9(3.28) - 15
RSU = 13.52
Hence the measure of RST and RSU are 39.43 and 13.52 respectively
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