Sagot :
Answer:
1. 60°
2.70°
3. 30
Step-by-step explanation:
1. 90-30=60°
2. 90+20=110
180-110=70°
3. 180-90=90
2x+x=90
3x=90
3x/3=90/3
x=30
Answer:
1. 60°
2.70°
3. 30
Step-by-step explanation:
1. 90-30=60°
2. 90+20=110
180-110=70°
3. 180-90=90
2x+x=90
3x=90
3x/3=90/3
x=30