I think it might mean that line SB bisects angle OBC. Here's a picture drawn to scale assuming that:Hi Ameer Bux:
Problem 7 is tricky because the figure is not drawn in a manner consistent with the statements about it. You might find it helpful to redraw it so that SB is a diameter of the circle ABC. At least that's how I interpret the text:"SB bisects ABC."
What do the numbers (1&2) in the diagram indicate? Are all angles labeled 1 supposed to be equal?
Buzz, do you have an argument for problem 8? I don't see it and I have my doubts it is even true. And I don't see proposition 1.32 at that link. ??Problem 8 is easier. I suggest you look up
Hope this helps.
Hi LCKurtz:Buzz, do you have an argument for problem 8?
From the link:And I don't see proposition 1.32 at that link. ??
Maybe I am missing something but it looks quite easy.Hi Buzz. I wasn't trying to point out errors though, I'm really wondering if his Problem 8 is true. So I was hoping you had a proof. I can't figure out a proof and I drew what I consider to be a reasonably accurate figure which leads me to believe it may be false.
I really have to learn geometry. I look foolish with a math degree without knowing geometryFor the first problem, the theorem which states that equal arcs subtend equal angles on a circle is applicable.