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What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 54° A) 126 B) 72 C) 63 D) 108
What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 54° A) 126 B) 72 C) 63 D) 108
An isosceles triangle has same base anglesif one of the base angles measure 54 degrees, 2nd is also 54And a triangle measures up to 180 degrees.180 = x + 2(54)180 = x + 108x = 72B) 72 is right optionhope this helps...
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