>>13186908That's better. It is unclear from the image what the figures 1, 6 and 26 are referring to, as both 6 and 26 could be the right angle. Fig 2 seems to connect the second triangle on the first row to the circle on left, but the thing in fig 3 is not from that. In fig 4, I'd recommend checking if the vertical lines correspond to the angle from DE being what the number says (notice how they go from 0 or 10 to 90!), and that would then give you sectors on the ellipse. Fig 5 does not refer to fig 4, though, as the triangle ABC you'd get out of that would be degenerate. Fig 7 seems to me like you'd be computing the sine of BCF by restricting to the equilateral triangle BCD, but a context would be nice. Fg 8 seems to describe how the sine acts as you change the angle, and this is depicted using an arc. Then you have a bunch of imagery on how to use auxiliary lines and circles for calculating things related to spherical triangles etc. The tower thing looks like a way to find the height of the tower using whatever those things on the ground are. Google the units and try to interpret the other pictures similarly.