Answer:
x = 3.92
Explanation:
The question is given as ;
40 = 6x² / 4 tan { 180/6}
40 = 6x² / 4 tan {30°}
40 = 6x² / 2.309
40 * 2.309 = 6x²
92.38 = 6 x²
92.38/6 = x²
15.40 = x²
√15.40 = x
