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Mathematics 18 Online
OpenStudy (sphott51):

What is the measure of a base angle of an isosceles triangle if the vertex angle measures 38 degrees and the two congruent sides each measures 21 units ?

OpenStudy (sphott51):

|dw:1424234598338:dw|

OpenStudy (anonymous):

All the angles of a triangle add up to 180 correct?

OpenStudy (sphott51):

Right

OpenStudy (anonymous):

So one of the base angles should be (180-38)/2= ?

OpenStudy (anonymous):

Understand what i did?

OpenStudy (sphott51):

Ohh.. Yeah the base has to be the same... so 71?

OpenStudy (anonymous):

Yep

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