The Exterior Angle of Triangle Formula is a mathematical formula that states that the exterior angle of a triangle is equal to the sum of its opposite interior angles. Every triangle has six exterior angles, with two at each side. The formula can be used to calculate the value of the exterior angle of a triangle, which is equal to the sum of the two opposite interior angles.
The exterior angle of a triangle is greater than any of its two opposite interior angles, as stated in the Exterior Angle Theorem. For example, in ΔABC, ∠5 = ∠a + ∠b. This theorem states that when a triangle’s side is extended, the resultant exterior angle formed is equal to the sum of the measures of the two opposite interior angles of the triangle.
Examples using the Exterior Angle Formula include creating an exterior angle by extending any side of the triangle. The Interior Angles of a Triangle Rule states that the sum of all three interior angles in a triangle is equal to 360°. The Exterior Angle Theorem states that the measure of any exterior angle of a triangle is equal to the sum of the measures of the opposite interior angles.
In summary, the Exterior Angle of a Triangle Formula is a useful tool for calculating the value of the exterior angle of a triangle, as it is equal to the sum of its two opposite interior angles.
📹 Exterior Angle Theorem For Triangles, Practice Problems – Geometry
This geometry video tutorial provides a basic introduction into the exterior angle theorem for triangles. It explains how to use it …
📹 Exterior Angle of a Triangle
NCEA Level 1 91031 1.6 Geometric Reasoning Skills Website – https://sites.google.com/view/infinityplusone/ Socials Facebook …
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