document.write( "Question 372631: in parallelogram ABCD, angle A = 3x and angle B 4x 40. what is the measures of angles A,B,C, and D. \n" ); document.write( "

Algebra.Com's Answer #265442 by Fombitz(32388) $\"\"$ $\"About$

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$\"A%2BB%2BC%2BD=360\"$
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\n" ); document.write( " $\"A=C\"$
\n" ); document.write( " $\"B=D\"$
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\n" ); document.write( " $\"2A%2B2B=360\"$
\n" ); document.write( " $\"A%2BB=180\"$
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\n" ); document.write( "I'm assuming $\"B=4x%2B40\"$ ??
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\n" ); document.write( " $\"3x%2B4x%2B40=180\"$
\n" ); document.write( " $\"7x=140\"$
\n" ); document.write( " $\"highlight%28x=20%29\"$
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\n" ); document.write( " $\"A=C=60\"$ degrees
\n" ); document.write( " $\"B=D=4%2820%29%2B40=120\"$ degrees
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