Quandaries
and Queries 

Provide two examples of real life objects that incorporate parabolic shapes. Explain the reason why the parabolic shape was used in each object. I need at least one practical application of the Pythagorean Theorem. connie 

Hi Connie, Satellite dishes are parabolic. For the reason why read Why are satellite dishes parabolic? Many other collectors and reflectors are parabolic for the same reason, for example the mirror in a reflecting telescope or the reflector behind an automobile headlight. On the first page of Math Central search in the Quandaries and Queries section for the word Pythagoras. You will find quite a few practical questions that we have received where the answer involves Pythagoras' Theorem. Penny 

