Question

the adjacent angles of a parallelogram are 6x-9 degree and 13x+18 degree.find all other angles..pls help

Answer 1

Sum of adjacent angles of a parallelogram is 180°

6x-9+13x+18=180
19x+9 =180
19x=171
x=9

1st angle = 6×9-9=45°
2nd angle=13×9+18= 135°

and opposite angles in parallelogram are equal so other two angles will be
45° and 135°

Answer 2

sum of adjacent angles of parallelogram are 180°

and their angle is equal to the opposite angles.....

so 6x-9+13x+18=180

19x=171
x=9

then the angle opposite to 6x-9=45°

angle opposite to 13x+18=135°



hope it helps