Ned almost didn’t join the gold rush of 1849. yes, he wanted to find gold, but he worried about leaving all his friends behind.
2 answers:
You might be interested in
In both cases,
(as a consequence of the interesecting secant-tangent theorem)
So we have
10.
(omit the negative solution because that would make at least one of AB or AD have negative length)
11.
(again, omit the solutions that would give a negative length for either AB or AD)