Find the angle measures of inscribed quadrilateral ABCD?

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Answer 1 · 2018-04-01T18:06:19

#color(red)A.# is correct

.

#m/_A+m/_D=180^@#

#2x+3+3x+7=180#

#5x=170#

#x=34#

#m/_A=2x+3=2(34)+3=68+3=71^@#

#m/_B=180-m/_C=180-(4x-10)=180-4x+10=190-4(34)=190-136=54^@#

#m/_C=4x-10=4(34)-10=136-10=126^@#

#m/_D=3x+7=3(34)+7=102+7=109^@#