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frozen [14]
3 years ago
14

find the measure of the vertex anlge of an isosceles triangle if the measure of one base angle is 36°

Mathematics
1 answer:
atroni [7]3 years ago
5 0
Because it is an isosceles triangle, the two base angles have to be the same, so
36°+36°=72°
angles in all triangles add up to 180°, so
180°-72°=108°
unknown=108°
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