Question

the vertical angle of an isosceles traingle is 100° find its base angle​

Answer 1

Answer:

40                

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Answer 2

Answer:

40°

Step-by-step explanation:

In a isosceles triangle as the sides are equal base angles are also equal

let the common multiple be x

100 + 2x = 180 .......sum of all angles in a triangle is 180

2x = 80

x = 40°

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