quadrilateral ABCD is a parallelogram.The ratio of angle A and angle B is 5:4.Find their measures
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let the common multiple be x
5x
4x
sum of the adjacent angle of parallelogram is 180
5x+4x=180
9x=180
x=20
5x=5×20
=100
A=100 degree
4x=4×20
=80
B=80 degree
hope it helps
5x
4x
sum of the adjacent angle of parallelogram is 180
5x+4x=180
9x=180
x=20
5x=5×20
=100
A=100 degree
4x=4×20
=80
B=80 degree
hope it helps
sarah234:
did u solved?
is my answer correct?
no
yes
umm
but I don't know how to upload pic
the answer is 100 and 80 degrees
you solved right
thanks
thanks bro's
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