Question

pls answer this angles questions​

Answer 1

Answer:

refer to the image for solution hope it will help

Answer 2

Answer:

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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