What is an interactive site where users write about personal topics

Plz ( which is an example of a good url?

Refer to the figure and match the theorem that supports the statement.1.if chords are =, then arcs are =.if bc = de, then arc bc = arc de2.if arcs are =, then chords are =.if arc bc = arc de, then bc = de3.diameters perpen

Think of a spreadsheet as a giant calculator spread of paper chart data collector