If your measuring unit is a degree then:
THE LARGER ANGLE IS 30 MORE THAN TWICE THE SMALLER.
mean:
α = 2 β + 30°
TWO ANGLES ARE ADJACENT AND FORM AND ANGLE OF 150
mean:
α + β = 150°
Replace α = 2 β + 30° in this equation.
α + β = 150°
2 β + 30° + β = 150° Subtract 30° to both sides
3 β + 30° - 30° = 150° - 30°
3 β = 120°
Divide both sides by 3
β = 120° / 3
β = 40°
α + β = 150°
α + 40° = 150° Subtract 40° to both sides
α + 40° - 40° = 150° - 40°
α = 110°
α = 110° , β = 40°
I don't know what is chapter lines.
TWO ANGLES ARE ADJACENT AND FORM AND ANGLE OF 150.THE LARGER ANGLE IS 30 MORE THAN TWICE THE SMALLER.FIND THE ANGLES. CHAPTER- LINES AND ANGLES
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