Charles Link's latest activity
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Charles Link reacted to DaveC426913's post in the thread I Geometry problem of interest with a 3-4-5 triangle with
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Oh I see. The diagram is perfectly four-fold symmetrical - but it is not eight-fold symmetrical. And the 37/53 is reflected in the two... -
Charles Link replied to the thread I Geometry problem of interest with a 3-4-5 triangle.@DaveC426913 I see your additions to post 21. Very good. It surprised me also when I first computed it. I was at Starbucks at the...
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Charles Link reacted to DaveC426913's post in the thread I Geometry problem of interest with a 3-4-5 triangle with Like.
I don't follow. The figure is perfectly symmetical. How can the central octagon not have eight 135 degree inner angles? Sunuvagun. So...
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Charles Link replied to the thread I Geometry problem of interest with a 3-4-5 triangle.It surprised me at first when I computed the angles between two of the lines. I thought I would get the result that the tangent of the...
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Charles Link replied to the thread I Geometry problem of interest with a 3-4-5 triangle.For the octagon in the center, all sides are the same length, but the angles alternate as mentioned previously, (post 4), so it is...
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Charles Link replied to the thread I Geometry problem of interest with a 3-4-5 triangle.Thank you @DaveC426913 <3 for the above diagram (post 18). The video on this is very incomplete, claiming that the triangles are of...
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Charles Link reacted to DaveC426913's post in the thread I Geometry problem of interest with a 3-4-5 triangle with Like.
That looks like an origami 'diamond' base. Almost; not quite.
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Charles Link reacted to SammyS's post in the thread I Geometry problem of interest with a 3-4-5 triangle with Like.
I couldn't see the video either, but following your early posts, especially Posts 2 & 4, I was able understand how this procedure...
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Charles Link replied to the thread I Geometry problem of interest with a 3-4-5 triangle.@DaveC426913 Start with a square and draw lines from all four corners to the midpoints of the two other sides of the square. I don't...
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Charles Link replied to the thread I Geometry problem of interest with a 3-4-5 triangle.The video just shows only one, but if you draw all of the lines connecting the four corners to the midpoints of the other sides, you...
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Charles Link replied to the thread I Geometry problem of interest with a 3-4-5 triangle.It may be stating the obvious, (for the inscribed circle of the triangle of post 10), but with the base of 14, where the center of the...
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Charles Link reacted to bob012345's post in the thread I Geometry problem of interest with a 3-4-5 triangle with Like.
Have you tried a 13,14,15 sided triangle? You can guess the radius.
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Charles Link replied to the thread I Geometry problem of interest with a 3-4-5 triangle.Very clever. I see for that one you have a base of 14, that can be split into 5 and 9, so that the height of the triangle is 12...
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Charles Link replied to the thread I Geometry problem of interest with a 3-4-5 triangle.Yes, last night I verified this in general, using a triangle with one slope of zero, with vertices at ## (0,0) ## and ## (a,0) ##...
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Charles Link reacted to bob012345's post in the thread I Geometry problem of interest with a 3-4-5 triangle with Like.
There appears to be a simple formula for the radius of the inscribed circle of any right triangle that goes as the area of the triangle...