Question

Guys please help me !!!!!?????
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Answer 1

Step-by-step explanation:

From b , draw a line parallel to the given parallel lines

∴ ∠1= 50° (alternate angles)

∠2 = 40°

∴ b = ∠1 + ∠2 = 50° + 40° = 90°

But a + b = 360°

∴ a + 90° = 360°

⇒ a = 360° - 90° = 270°

Hence, a = 270°, b = 90°

Hope it will help you ♥️