Question

Explain angle sum property.
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Answer 1

Answer:

Theorem 1: Angle sum property of triangle states that the sum of interior angles of a triangle is 180°. Proof: Consider a ∆ABC, as shown in the figure below. To prove the above property of triangles, draw a line \overleftrightarrow {PQ} parallel to the side BC of the given triangle.

Answer 2

Answer:

Angle sum property of triangle states that the sum of interior angles of a triangle is 180°. Proof: ... Thus, the sum of the interior angles of a triangle is 180°.

Step-by-step explanation:

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