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Triangles — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSTriangles1 Mark
Question
The sum of the interior angles of a triangle is:
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Answer

  1. 180º
    Solution:
    For a triangle,
    Number of sides (n) = 3
    Sum of interior angles = (n - 2) × 180º
    = (3 - 2) × 180º
    = 1 × 180º
    = 180º

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