Question

Paul observes that AB=AC and concludes that AB and AC must be tangent to the circle. What is wrong with Paul's reasoning?

Answer 1

C.

Explanation:

Answer 2

the complete question in the attached figure

we know that
the triangle AOB is congruent with triangle AOC
because
AB=AC
OB=OC-----> the radius of the circle
The OB side is common
but

there is no additional information that allows me to calculate the OBA angle to determine if it is a right angle

therefore

the answer is the option
C. There is no indication that AB and AC are perpendicular to the radii at the points of intersection with the circle.