In this question testing basics of Geometry, we use __two properties to solve the question:__

(1) Vertically opposite angles are equal

(2)Sum of two internal angles is equal to external angle in a triangle.

Modified on: Tue, 12 Oct, 2021 at 1:35 PM

In this question testing basics of Geometry, we use __two properties to solve the question:__

(1) Vertically opposite angles are equal

(2)Sum of two internal angles is equal to external angle in a triangle.

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