Answer:
..according to coding the sum of the 2 angles = 90°.
2x-10+3x-10=90°
5x-20=90
5x=90+20
x= 110/5=22°
angle 3x-10= 3*22-10=56°
angle 2x-10 = 2*22-10= 34°
8 :
4x-20+30=90°
4x+10=90°
4x=90-10
x=20°
angle 4x-20 = 4*20-20=60°
Explanation:
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