ar9nellkittyspeck ar9nellkittyspeck

14-03-2017
Mathematics

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What is the measure of one of the base angles of an isosceles triangle if the measure of the vertex angle is 98 degrees ?

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wolf1728 wolf1728

14-03-2017

Triangles have 3 angles totalling 180 degrees.
An isosceles triangle has base angles equal so 2*base angle + vertex = 180.

180 - 98 = 2 *base angle
82 = 2 * base angle
Each base angle = 41 degrees.

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