Angles of a quadrilateral are (2x)°, 5(x+4)°, (6x-20)° and 6(x+3). Find
(i) The value of x.
(ii) Each angle of a quadrilateral.
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2x+5x+20+6x-20+6x+18=360 it is because the sum of all angles of quadrilateral is 360. 19x+18=360.
19x=360-18
19x=342
x=342/19
x=18
first angle is 2x that is x=18 so 2x =18*2=36
second angle =x+4=18+4=22. 5*22=110
3 angle (6*18-20)
108-20=88
x+3=18+3=21*6=126
19x=360-18
19x=342
x=342/19
x=18
first angle is 2x that is x=18 so 2x =18*2=36
second angle =x+4=18+4=22. 5*22=110
3 angle (6*18-20)
108-20=88
x+3=18+3=21*6=126
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