If the vertex angle of an isosceles triangle is 30 degrees, what is the value of the angle that is exterior to one of the base angles?
First, you subtract one angle so 180−30 = 150. Because there are 2 base angles you divide that value by 2 to get 75 Degrees. The exterior angle and the base angle are supplementary angles so 180 − 75 = 105.
131 MCQ for effective preparation of the test of Basic Concepts of Geometry of Solid Geometry section.
Read the MCQ statement: If the vertex angle of an isosceles triangle is 30 degrees, what is the value of the angle that is exterior to one of the base angles?, keenly and apply the method you have learn through the video lessons for Basic Concepts of Geometry to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 86-11938.