Please help! will give brainilest

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

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 !

The government of country a has determined there is a coal shortage a seed on mining reports as a result of these data the government decreases coal exports to other nations access to information country a