Help ill mark specialist

:calculate the sum of the interior angles of a 13-sided polygon.

Will someone earth science water cycle: will someone tell me how the water cycle works, but in a story? ? pretend you are a drop of water somewhere. (like; "once i was floating around in a cloud" or, "once i was lying in a puddle in the middle of a parking lot.) and tell your life story! and use the words "evaporation" "condensation" "accumulation" "transpiration" "precipitation" and "runoff" tell the story like your the drop of water telling your life story. include all the parts of the water cycle including those vocabulary words above. and !

How would you find the measure of one interior angle