Take a triangular piece of paper. Choose three different colors or sig – InterviewSolution

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1.

Take a triangular piece of paper. Choose three different colors or signs to mark the three comers of the triangle on both sides of the paper. Fold the paper at the midpoints of two sides as observe?

Answer»

The three angles of the triangle form a straight angle.

∴ m∠A + m∠B + m∠C = 180°

Hence, the sum of the measures of the angles of a triangle is 180°.

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