Friday
April 18, 2014

Homework Help: Proof math problem help? Please help if you can!

Posted by Knights on Tuesday, January 15, 2013 at 6:01pm.

Let AB be the diameter of a circle, and let point P be a point on AB. Let CD be a chord parallel to AB. Prove that PA^2 + PB^2 = PC^2 + PD^2

It can be solved using geometry methods (no trig). Anyway, I figured out that PA^2 +PB^2 = 2OP^2 + 2OB^2. However, I cannot find right triangles to help to find PC^2+PD^2. Oh, and I got a hint: "The problem involves sums of squares of lengths. What should you be looking for (or building) in the problem?"

Thanks in advance

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - Please help me with this problem: A bourbon that is 51 proof is 25.5% ...
college math - I posted this problem earlier, but I still can't figure it out. ...
Philosophy - I need help with this proof for my philosophy class. This proof is ...
Philosophy - I need help with this proof for my philosophy class. This proof is ...
Philosophy - I need help with this proof for my philosophy class. This proof is ...
math - A bourbon that is 51-proof is 25.5% alcohol by volume while one that is ...
communication - In general, thesis or central idea is supported by claims; ...
Coordinate Geometry: Ms.Sue or someone please help - Hi! Can you please help me ...
Coordinate Geometry: Ms.Sue or someone please help - Hi! Can you please help me ...
Math - What is wrong with the following proof. You must explain your answer in ...

Search
Members