pls answer this angles questions
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refer to the image for solution hope it will help
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A = 50°
B = 125°
C = 75°
D = 40°
Step-by-step explanation:
(a) 60° + 70° + a = 180°
⇒ 130° + a = 180°
⇒ a = 180° - 130°
⇒ a = 50°
(b) 35° + 20° + b = 180°
⇒ 55° + b = 180°
⇒ b = 180° - 55°
⇒ b = 125°
(c) 30° + c + c = 180°
⇒ 30° + 2c = 180°
⇒ 2c = 180° - 30°
⇒ 2c = 150°
⇒ c = 150° ÷ 2
⇒ c = 75°
(d) d + 2d + 60° = 180°
⇒ 3d + 60° = 180°
⇒ 3d = 180° - 60°
⇒ 3d = 120°
⇒ d = 120° ÷ 3
⇒ d = 40°
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