Problem There are three circles in a right triangle $ABC$ as shown in the figure. When the product of the diameter of the middle circle and the length of $BD$ is 2.88, and the sum of the length of $AD$ and the diameter of the small circle is 3.6 inches, what is the diameter of…

Problem There are three circles in a right triangle $ABC$ as shown in the figure. When the product of the diameter of the large circle and the length of $DA$ is 4.8 and the difference between the diameter of the middle circle and the side $AB$ is 1.4 inches, what is the diameter of the…

Tanokuma Hachiman Shrine is located 4.2km southeast of Takano Station on the JR Inbi Line and 4.2km north of Nishi Katsumata Station on the JR Kishin Line. Problem There are three circles in a right triangle $ABC$ as shown in the figure. When the product of the square of the side $CA$ and the square…