Answer:
[tex]\frac{70}{sin40^{\circ}}[/tex]
Step-by-step explanation:
We are given that
Height of the kite from the ground=h=70 feet
[tex]\theta=40^{\circ}[/tex]
We have to find the length of kite string in term of trigonometric ratios.
Let length of string=x
We know that
[tex]sin\theta=\frac{Perpendicular\;side}{hypotenuse}[/tex]
Using the formula
[tex]sin40^{\circ}=\frac{h}{x}[/tex]
[tex]sin40^{\circ}=\frac{70}{x}[/tex]
[tex]x=\frac{70}{sin40^{\circ}}[/tex]
Hence, the length of kite string=[tex]\frac{70}{sin40^{\circ}}[/tex]
