document.write( "Question 1150191: AB = 16cm
\n" ); document.write( "AD = 12cm
\n" ); document.write( "Angle BCD = 40 Degrees
\n" ); document.write( "Angle ADB = Angle CBD = 90
\n" ); document.write( "cALCULATE THE LENGTH OF CD
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\n" ); document.write( "O is where AB and CD meet
\n" ); document.write( "BD is a leg of the right triangle ABD and is 12^2+BD^2=256, so BD^2=112 and BD is 10.58
\n" ); document.write( "The sin of C, 40 deg is 10.58/CD, opposite/hypotenuse
\n" ); document.write( "CD=10.58/sin 40=16.46 cm
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