Asked by Fiyi
In a circle whose center is O, arc AB contains 100°. Find the number of degrees in angle ABO.
Answers
Answered by
scott
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 = 100º
A + B + O = 180º
... so angles A and B are equal ... A = B
central angle O equals the arc AB ... O = 100º
A + B + O = 180º