# Math

In a circle whose center is O, arc AB contains 100Β°. Find the number of degrees in angle ABO.

1. π 0
2. π 0
3. π 65
1. ABO is an isosceles triangle ... AO and BO are radii of the circle
... so angles A and B are equal ... A = B

central angle O equals the arc AB ... O = 100ΒΊ

A + B + O = 180ΒΊ

1. π 0
2. π 0
posted by scott

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