The diagram of the kite is shown below
To find the perpendicular height of the kite from the ground, we use the trigonometry ratio for sin(x).
The reason for using the sine ratio is because we have the hypotenuse, 80 feet, and the angle, 40° and we are looking for the length of the side opposite the angle.




rounded to two decimal place
Perpendicular height of the kite from the ground is 51.42 feet
Its c because the first quadrant x is positive and y is positive.The second quadrant x is negative and y is positive.The third quadrant x is negative and y is is negative.Then the fourth quadrant x is positive and y is negative
The answer is ae=12 that what i got right on my test
The correct answer would be A. 21.5
a^2 + b^2 = c^2
so....
100 + 361 = c^2
The square root of 461 is 21.4709106 but you would round to 21.5