Two questions, please. I have provided diagrams!
1. Find the measurement of <a, <b, <c, and <d. Explain your reasoning in each case.
http://img.photobucket.com/albums/v1...en/math001.jpg
2. In the diagram, tangents have been drawn from P to the circles. If O is the center of the smaller circle, find the exact value of PO. Explain your reasoning.
http://img.photobucket.com/albums/v1...en/math002.jpg
If you could elaborate on how to come to the answer, that'd be great!
1. Have a look here (better look twice!): Inscribed angle - Wikipedia, the free encyclopedia
2. Using the above mentioned theorem you'll get:
(btw why?)
(btw why?)