ABCD is a parallelogram with AB parallel to DC. IF angle a = (5x + 5) and angle B = (4x - 5), find the value of x and the measures of all the angles of the parallelogram ABCD
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5x+5+ 4x -5=180°
9x. = 180
X= 180/9=20°
angle a= 5×20+5= 100+5= 105°
angle b= 4×20-5= 80-5= 75°
9x. = 180
X= 180/9=20°
angle a= 5×20+5= 100+5= 105°
angle b= 4×20-5= 80-5= 75°
pereirabrianna0109:
how did u get 180/9 ?
9x = 180, then x= 180/9= 20
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