Determine the value "x" in the triangle below a) 5.5b) 5.3c) 7.8d) 16.2
In order to determine the value of x, use the cosine function, as follow:
cos 18° = x/17
solve the previous equation for x and simplify:
x = 17·cos 18°
x = 17·0.95
x = 16.2
Hence, the value of x is x = 16.2