Answer:

Step-by-step explanation:
The height of the right triangle drawn to the hypotenuse is geometric mean of two segments of hypotenuse, so

By the Pythagorean theorem,

and

Move all terms that don't contain y to the right side and solve y=3x+4
Answer:18
Step-by-step explanation: She gave 3 children 3 pieces each. 3*3=9. She also took 9 pieces for herself. 9+9=18
Answer: 1 right angle is the maximum