Answer:
110+130+x+(x-30)=360° .....angles of a quad...
240°+x+x-30°=360°
240°-30°+2x=360°
210°+ 2x=360°
2x=360°-210°
2x=150°÷2
x=75°....
Hello!
110+ 130 +x+x-3 =360
240 + 2x -3 = 360
2x= 360 - 240 +3
2x =123
x= 123/2 => 61,5°
(x-3)° = 61,5 -3 => 58,5°
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