Question

plz answer friends ​

Answer 1

Answer:

(2) angle 1 + angle 2

Step-by-step explanation:

According to exterior angle property, the exterior angle of a triangle is equal to the sum of two opposite interior angles of the triangle.

Here, in the given Question angle 4 is exterior angle to the triangle and two opposite angles are angle 1 and angle 2.

So, angle 4 = Angle 1 + angle 2.

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