Question

Prove that the sum of all angles of a Triangle is equals to 180°

Answer 1

Proof of the Angle Sum Property

Step 1: Draw a line PQ that passes through the vertex A and is parallel to side BC of the triangle ABC. Step 2: We know that the sum of the angles on a straight line is equal to 180°. In other words, ∠PAB + ∠BAC + ∠QAC = 180°, which gives, Equation 1: ∠PAB + ∠BAC + ∠QAC = 180°

Answer 2

Step-by-step explanation:

ok understood

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