SOLUTION: 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 : Angl

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Question 127402This question is from textbook
: 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 :
Angle DCA, DAC, CAB, ABC, BCA, AND BCD This question is from textbook

Answer by MathLover1(20850) About Me  (Show Source):
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since angles DCA and BAC have equal measures of 60 degrees and are complementary, then angles DAC and BCA have equal measures of 30 degrees
if we have DCA%2B+DAC+=+90, then angle ADC is 90 degrees
same for other two; so we have a square (or rectangle)