Question

One of the base angles of an isosceles trapezium is 80°. Find the measures of the remaining
angles.
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Answer 1

Total Number of sides In Triangle - 3

Total degree of angles = 180°

Suppose the remaining side be x

So,

Two sides = 2

2x

180 = 80 + 2x

180 - 80 = 2x

100 = 2x

x = 100/2

x = 50

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