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Mathematics 18 Online
OpenStudy (anonymous):

what is the value of x

OpenStudy (anonymous):

OpenStudy (anonymous):

71

OpenStudy (anonymous):

180 - 38 = 142 / 2 = 71 degrees

OpenStudy (anonymous):

all you have to do is... you know the triangle is isosceles because 2 legs are the same

OpenStudy (anonymous):

so that means that the two bottom angles are congruent

OpenStudy (anonymous):

that means they must be equal and a triangle = 180* so u just subtract

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