Answer:
Henry thinks he can figure out how high his kite is while flying it in the park. first, he lets out 150feet of string and ties the string to a rock on the ground. then, he moves from the rock until the string touches the top of his head. he stands up straight, forming a right angle with the ground. he wants to find out the distance from the ground to his kite. he draws the following diagram to illustrate what he has done.