document.write( "Question 164631This question is from textbook Geometry concepts and skills
\n" ); document.write( ": Suppose triangle LWT is isosceles, the measure of angle W= 90 degrees, LW= 7X+ 21, and TW= 4X + 21.\r
\n" ); document.write( "\n" ); document.write( "a. Determine LW,TW,LT, the measure of angle L and angle T.\r
\n" ); document.write( "\n" ); document.write( "from: geometry
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\n" ); document.write( "Chapter 4 Section 7
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Algebra.Com's Answer #121318 by scott8148(6628)\"\" \"About 
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isosceles means that the two base angles are equal as are the sides opposite the angles\r
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\n" ); document.write( "\n" ); document.write( "LW=TW __ 7X+21=4X+21 __ subtracting 4x+21 __ 3X=0 __ X=0\r
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\n" ); document.write( "\n" ); document.write( "LW=TW=21\r
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\n" ); document.write( "\n" ); document.write( "there are 180º in a triangle __ the vertex angle is 90º, so the sum of the two base angles is also 90º
\n" ); document.write( "__ so each bse angle equals 45º\r
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\n" ); document.write( "\n" ); document.write( "by Pythagoras __ LT^2=LW^2+TW^2 __ LT^2=2(21^2) __ LT=21*sqrt(2)
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