Interior Angles And Exterior Angles Of A Triangle. For example in ΔABC 5 a b. Interior and Exterior Angles of a Triangle.
In these pdf worksheets the measure of one of the interior angles of each triangle is presented as an algebraic expression. For ABC Angle sum property of triangle declares that Sum of all the interior angles of the triangle. Then answer the questions that follow.
Interior and Exterior Angles of a Triangle.
Its all about extending a side of the triangle. Interior angle is defined as the angle formed between two adjacent sides of a triangle. Applying the exterior angle theorem add the two opposite interior angles to find the unknown exterior angle of a triangle. The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.