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You are not logged in. #1 20140113 16:41:44
pentagon problemIn pentagon ABCDE, BC=CD=DE=2 units, <E is a right angle and m<B = m<C = m<D = 135 degrees. The length of segment AE can be expressed in simplest radical form as a+2sqrt(b) units. What is the value of a+b? Batman shows Superman his new phone. Batman"Alfred, whats the temperature in London?" Alfred"Just a second, sir." Alfred turns on his iPhone."Siri, whats the temperature in London?" Siri  "Six centigrade." Alfred"Six centigrade sir." Batman"See?" #3 20140113 19:09:18
Re: pentagon problemnice! thats correct! I wish the thing I'm doing had solutions Batman shows Superman his new phone. Batman"Alfred, whats the temperature in London?" Alfred"Just a second, sir." Alfred turns on his iPhone."Siri, whats the temperature in London?" Siri  "Six centigrade." Alfred"Six centigrade sir." Batman"See?" #5 20140114 16:25:46
Re: pentagon problemHi,
a = 2BC = 2x2 = 4, and b = CD = 2......from which CF = √2 (Pythagoras) and hence CF also = √b. Last edited by phrontister (20140115 18:28:50) "The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do."  Ted Nelson 