Complete the following proof.
Given: Two concentric circles with AB tangent to smaller circle at R
Prove: AR = RB

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

Drag the tiles to the correct boxes to complete the pairs. match the cart-coordinates with their corresponding pairs of y-coordinates of the unit circle

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5