J+46=180. k+m+92=360. j+k+m=180
Y = kx
20 = .4k
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.4 .4
50 = k
Depends on which angle is x because the 2 smaller corner angles equals 45 degrees each which the third equals 90 degrees so it depends on which angle is x
That would be 8 1/6 * 4/7 = 49/6 * 4/7 = 7*4 / 6 = 28/6 = 4 4/6 = 4 2/3
Answer is 4 2/3 hours