04-10-2020
Mathematics

contestada

In an isosceles triangle, the vertex angle is twice either base angle. Then, find the measure of base angle.

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jimrgrant1 jimrgrant1

04-10-2020

Answer:

45°

Step-by-step explanation:

let the base angle be x, then vertex angle = 2x

The sum of the 3 angles in a triangle = 180°, thus

x + x + 2x = 180

4x = 180 ( divide both sides by 4 )

x = 45

The base angle = 45°

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