vickevans81 vickevans81

21-10-2020
Mathematics

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The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?

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jimrgrant1 jimrgrant1

21-10-2020

Answer:

70°

Step-by-step explanation:

In an isosceles triangle the 2 base angles are congruent , thus

base angle = [tex]\frac{180-40}{2}[/tex] = [tex]\frac{140}{2}[/tex] = 70°

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