What divided by -18 = 23

I’m which figure is point g an orthocenter

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8