Answer:
u = 20cm
Step-by-step explanation:
Hello,
The diagram above is a right angle triangle and we can solve for u using trigonometric ratio
From the diagram,
Angle θ = 60°
Opposite = 10√3
Sinθ = opposite/ hypothenus
Opposite = 10√(3)
Hypothenus = u
θ = 60°
Sin60 = 10√(3) / u
u = 10√(3)/sin60
u = 10√(3) ÷ √(3)/2
u = 20√(3)/√(3)
We can further solve this using surds rule
u = 20√3 ÷ √3 / √(3) / √(3)
u = 20√(3*3) / √(3*3)
u = (20 × 3) / 3
u = 20cm
