Find angle 1 (in degrees) in the figure given below. Given that, the two lines are parallel.

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Solution

Alternate exterior angles are equal.

Therefore, the required angle = $80^{\circ}$ (1 marks)

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The two given lines are parallel. Find the value of angle 1 (in degrees).

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Find angle 1 (in degrees) in the figure given below. Given that, the two lines are parallel.

Alternate exterior angles are equal. Therefore, the required angle = 80∘ (1 marks)

Alternate exterior angles are equal.

Therefore, the required angle = $80^{\circ}$ (1 marks)