How to solve 1997×99​

The Asian Financial Crisis is a crisis caused by the collapse of the currency exchange rate and hot money bubble. ... On July 2, 1997, the Thai government ran out of foreign currency. No longer able to support its exchange rate, the government was forced to float the Thai baht, which was pegged to the U.S. dollar before.

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.