Answer:
Step-by-step explanation:
Triangle QRS is a right angle triangle.
From the given right angle triangle
RS represents the hypotenuse of the right angle triangle.
With 30 degrees as the reference angle,
QR represents the adjacent side of the right angle triangle.
QS represents the opposite side of the right angle triangle.
To determine QR, we would apply trigonometric ratio
Cos θ = adjacent side/hypotenuse side. Therefore,
Cos 30 = QR/14
√3/2 = QR/14
QR = 14 × √3/2
QR = 14√3/2 = 7√3/2
