Answer:
x = 30°
2x = 60°
3x = 90°
Step-by-step explanation:
GBF = CBD (opposite angle)
; 2x+x+3x = 180° (Size of straight angle)
6x = 180
x = 180÷6
substitution x in 2x ; 2×30 = 60°
substitution x in 3x ; 3×30 = 90°
hope it helps ☺️
