Answer:
127.45 m
Explanation:
Given :- 
- Height of kite = 65 m .
 - Inclination of string = 31° .
 
To Find :- 
- The length of the string .
 
Solution :- 
Here we need to find out the length of the string here if we imagine a right angle triangle in which the height of the kite will be the perpendicular of the triangle and the length of the string will be the hypotenuse of triangle . 
And the angle between the the string and the ground will be 31°. 
Here we can use ratio of sine as ,
> sin∅ = p/h 
> sin 31° = 65m/ h 
> h = 65m/sin 31° 
> h = 65m/0.51 
> h = 127 .45 m