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  1. www.mathsisfun.com › geometry › exterior-anglesExterior Angle - Math is Fun

    Exterior Angle. any side of a shape, and a line extended from the next side. Another example: When we add up the Interior Angle and Exterior Angle we get a Straight Angle (180°), so they are "Supplementary Angles".

    • Interior Angles

      When we add up the Interior Angle and Exterior Angle we get...

  2. byjus.com › maths › exterior-angle-theoremTriangles, Exterior Angle Theorem - BYJU'S

    Exterior Angle Theorem of a Triangle - The theorem states that if any side of a triangle is extended, then the exterior angle so formed would be equal to the sum of the opposite interior angles of a triangle.

  3. www.cuemath.com › geometry › exterior-angle-of-triangleExterior Angles of Triangle - Definition, Formula, Properties -...

    The exterior angle of a triangle is the angle that is formed with one side and the adjacent extended side of a triangle. There are 3 exterior angles in a triangle and the sum of the exterior angles of a triangle is always equal to 360°.

  4. mathmonks.com › triangle › exterior-angle-of-a-triangleExterior Angle of a Triangle – Definition, Theorem, Proof,...

    3 sie 2023 · An exterior angle of a triangle is equal to the sum of the two opposite interior angles, thus an exterior angle is greater than any of its two opposite interior angles; for example, in ΔABC, ∠5 = ∠a + ∠b

  5. www.splashlearn.com › math-vocabulary › exterior-angle-theoremExterior Angle Theorem: Definition, Proof, Examples, Facts, FAQs

    Exterior angle theorem states that the measure of an exterior angle of a triangle is equal to the sum of two remote interior angles. The remote interior angles or opposite interior angles are the angles that are non-adjacent with the exterior angle. A triangle is a polygon with three sides.

  6. www.vedantu.com › maths › exterior-angle-theoremExterior Angle Theorem – Properties, Proof and Solved Example -...

    The exterior angle theorem states that the sum total of all the remote interior angles of the triangle is equal to the non-adjacent exterior angle of that triangle. From the figure above, it means that m∠A + m∠B = m∠ACD.

  7. www.mathsisfun.com › geometry › exterior-angles-polygonsExterior Angles of Polygons - Math is Fun

    The Exterior Angle is the angle between any side of a shape, and a line extended from the next side. Another example: When we add up the Interior Angle and Exterior Angle we get a straight line 180°. They are "Supplementary Angles". Polygons. A Polygon is any flat shape with straight sides. The Exterior Angles of a Polygon add up to 360°.