Answer:
Explanation:
take 39 degree as reference angle
using cos rule
cos 39=adjacent/hypotenuse
0.77=x/17
0.77*17=x
13.09=x
13.21148134 meters
Since this is a right triangle, we can use trig functions
cos theta = adj/ hyp
cos 39 = x /17
17 cos 39 = x
13.21148134 = x
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