In the early stages, there may be no symptoms associated with hip impingement or symptoms may be mild or vague. 1  Some typical symptoms include: 2  Stiffness in the thigh, hip, or groin. 3  The inability to flex the hip beyond a right angle.
The framework of Singapore Math is developed around the idea that learning to problem-solve and develop mathematical thinking are the key factors in being successful in math.
One is to use Pythagoras' Theorem and some algebra. This method is illustrated in the answer I gave to Sharon in response to a question she asked last year. The second method uses Heron's formula. Heron's formula shows you how to find the area of a triangle from the lengths of the three sides. Use Heron's formula to find the area A of your triangle. You also know that the area is half the base times the height and since you have a base of 15. A = 1/2 Ã15 Ã height. Solve for the height. I hope this helps,