The length of side x to the nearest tenth is 3.5 units
The image the completes the question is added as an attachment
From the attached image, the side length x can be calculated using the following sine trig ratio
sin(angle) = opposite/hypotenuse
Where
Opposite = 3
Hypotenuse = x
Angle = 60
Substitute the known values in the above equation
sin(60) = 3/x
Make x the subject of the equation
x = 3/sin(60)
Evaluate the quotient
x = 3.5
Hence, the length of side x to the nearest tenth is 3.5 units
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