Question

Determine whether a tangent line to circle O is shown in the diagram, for AB = 7.75, OB = 4, and AO = 8.75. Explain your reasoning.

Answer 1

plug in the values into the pythagorean theorem
a^2+b^2=c^2
and determine whether or not that works

is it does, then you can conclude it is tangent because it meets the radius at a 90 degree angle meaning it will only touch the circle once

Answer 2

ok thank you!