I call with this every time at these stakes or 10 times larger
There's nobody else in the pot, so it's heads up
Conservative estimate you're about 50% to win here, given the fact your a slight dog against underpair, but dominating Ax slightly more frequently than being dominated by KK/AA. You're getting correct odds to call that.
If you're gonna offer me 10:9 on a coinflip, I'm going to take it any day. Anyone who refuses is too risk averse for poker.