Mathematics, 05.02.2020 02:00, CassidgTab

The isosceles trapezoid abde is part of an isosceles triangle ace. find the measure of the vertex angle of ace. (see attachment)

a. 130 degrees

b. 60 degrees

c. 65 degrees

d. 50 degrees

i really need an explanation along with the answer,

The isosceles trapezoid abde is part of an isosceles triangle ace. find the measure of the vertex an

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The isosceles trapezoid abde is part of an isosceles triangle ace. find the measure of the vertex an...