document.write( "Question 1019335: http://prntscr.com/a23h3z
\n" ); document.write( "So, I'm aware I have to use the distance formula.
\n" ); document.write( "For (-b,c) and (a,0) I got [sqroot (a+b)^2+(D-c)^2)] after simplifying it, but I don't know how to simplify any further. The same thing foes for [sqroot (-a-b)+(0-c)]. I don't know how to simplify these with the distance formula like I do if they were numbers because they're coordinates. A little help and explanation would be nice. \n" ); document.write( "

Algebra.Com's Answer #635275 by ikleyn(52879) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "http://prntscr.com/a23h3z
\n" ); document.write( "So, I'm aware I have to use the distance formula.
\n" ); document.write( "For (-b,c) and (a,0) I got [sqroot (a+b)^2+(D-c)^2)] after simplifying it, but I don't know how to simplify any further. The same thing foes for [sqroot (-a-b)+(0-c)]. I don't know how to simplify these with the distance formula like I do if they were numbers because they're coordinates. A little help and explanation would be nice.
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document.write( "The answer is .\r\n" );
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document.write( "For the solution, first draw the diagonal from (-a,0) to (b,c).\r\n" );
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document.write( "Then draw the perpendicular from the point (b,c) to the base of the trapezoid.\r\n" );
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document.write( "You will get a right-angled triangle with the horizontal leg length (a + b) and the vertical leg length c. \r\n" );
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document.write( "The diagonal of the trapezoid is the hypotenuse of this triangle,\r\n" );
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document.write( "and its length is .\r\n" );
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document.write( "Same is the length of the other diagonal.\r\n" );
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