Answer:
h = 1.403733341286
Step-by-step explanation:
17.
the triangle of sides ‘l’ and ‘l-h’ is a right angled triangle.
Then
[tex]\cos \theta =\frac{l-h}{l}[/tex]
Then
[tex]l\cos \theta =l-h[/tex]
Then
[tex]h=l-l\cos \theta[/tex]
18.
For l = 6 and θ = 40 :
[tex]h=l-l\cos \theta[/tex]
= 6-6cos(40)
= 1.403733341286
