Question

In figure, AB || CD and angle F = 30°. Find angle ECD.​

Answer 1

Answer:

Given :-

• AB || CD
• Angle F = 30°

To Find :-

• Angle ECD

Solution :-

• Angle F + 90° = 120° ( Assume Angle EFI)

• Angle ECD = Angle EFI ( 120° )
• Angle ECD = 120° ( Alternate Interior Angle)

Answer 2

Answer: Hey as u can see

In the figure,

angle AFC = angle FCG = 30° (alternate angles)

GC is a perpendicular on CD.

angle GCD = 90°

angle FCG + angle GCD = 30°+90° = 120°

Hope it helps!

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