What is the sum of all the internal angles of a rectangle?


Answer:

360° (90° x 4)

Step by Step Explanation:
  1. We know that for a polygon with n sides, the sum of its internal angles is given by 180° × (n - 2).
  2. We also know that a rectangle (or any quadrilateral for that matter) has 4 sides:
  3. This means that the sum of all the internal angles of a rectangle is 180° × (4 - 2) = 180° × 2 = 360°.
  4. Hence, the sum of all the internal angles of a rectangle (or any quadrilateral) is 360°.

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