Answer:
X=8.59
Explanation:
Sen 50 = 0.77 -> 77/100
Cos 50 = 0.64 -> 64/100
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64k = 5.5
k=5.5/64
k= 11/128
x= 100k
x= 100(11/128)
x= 275/32
X= 8.59375
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