The center of a circle is at the point (4, 3). The circle passes through the point (2, 1). What is the radius of the circle?

How do you solve a question like this?

First work with stencil one. use a combination of reflections, rotations, and translations to see whether stencil one will overlap with the original pattern. list the sequence of rigid transformations you used in your attempt, noting the type of transformation, the direction, the coordinates, and the displacement

3/4 + p = 1/2? i’m not sure how to solve it