How can i find a angle measure with square roots ?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Drag each tile into the correct box. not all tiles will be used. find the tables with unit rates greater than the unit rate in the graph. then tenge these tables in order from least to greatest unit rate

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?