document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=127402>Question 127402</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/1565775090/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Parallelogram ABCD is divided by a diagonal into two congruent triangles.  Angle DCA and BAC have equal measures of 60 degrees and are complementary.  Find the measure of :\r<BR>\n" );
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document.write( "Angle DCA, DAC, CAB, ABC, BCA, AND BCD </SPAN>\n" );
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document.write( "since angles <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=DCA ALIGN=MIDDLE  ALT=\"DCA\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=BAC ALIGN=MIDDLE  ALT=\"BAC\"   DISABLED_style= \"max-width:90%; height:auto;\" > have equal measures of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60 ALIGN=MIDDLE  ALT=\"60\"   DISABLED_style= \"max-width:90%; height:auto;\" > degrees and are <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=complementary ALIGN=MIDDLE  ALT=\"complementary\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then angles <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=DAC ALIGN=MIDDLE  ALT=\"DAC\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=BCA ALIGN=MIDDLE  ALT=\"BCA\"   DISABLED_style= \"max-width:90%; height:auto;\" > have equal measures of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30 ALIGN=MIDDLE  ALT=\"30\"   DISABLED_style= \"max-width:90%; height:auto;\" > degrees\r<BR>\n" );
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document.write( "if we have  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=DCA%2B+DAC+=+90 ALIGN=MIDDLE  ALT=\"DCA%2B+DAC+=+90\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then angle <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ADC ALIGN=MIDDLE  ALT=\"ADC\"   DISABLED_style= \"max-width:90%; height:auto;\" > is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90 ALIGN=MIDDLE  ALT=\"90\"   DISABLED_style= \"max-width:90%; height:auto;\" > degrees\r<BR>\n" );
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document.write( "same for other two; so we have a square (or rectangle) </SPAN>\n" );
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