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G
greg1313
reacted to
lookagain's post
in the thread
Cross Section Length of a Pentagon
with
Like
.
Actually, tfmcbride's expression is not ambiguous. In the expression (1+sqrt(3)+sqrt(5)-sqrt(15))/sqrt(2) , the first leftmost open...
Mar 25, 2026
G
greg1313
reacted to
tfmcbride's post
in the thread
Cross Section Length of a Pentagon
with
Like
.
The value given above for the side of the largest pentagon in a unit cube is correct. The exact value is...
Mar 25, 2026
L
lookagain
replied to the thread
Cross Section Length of a Pentagon
.
I would like you to stay on the topic with the expression that has the pair of parentheses removed: 1+sqrt(3)+sqrt(5)-sqrt(15)/sqrt(2)...
Mar 24, 2026
The Highlander
replied to the thread
arc in circle
.
You may also find these videos on Circle Theorems and their proofs useful in your efforts... (NB: I suggest you click the (black) "Watch...
Mar 24, 2026
The Highlander
replied to the thread
Cross Section Length of a Pentagon
.
You're right, I simply didn't notice that pair of brackets after the "sqrt(15" which does, indeed, render their (his/her) expression...
Mar 24, 2026
The Highlander
replied to the thread
arc in circle
.
You may also find (exactly?) what you are looking for here... Geometric proofs in Hebrew?
Mar 24, 2026
The Highlander
replied to the thread
arc in circle
.
This video may help you... From "Google" (qv) there is the following advice:- A geometry proof is a logical, step-by-step argument...
Mar 24, 2026
L
lookagain
replied to the thread
Cross Section Length of a Pentagon
.
Actually, tfmcbride's expression is not ambiguous. In the expression (1+sqrt(3)+sqrt(5)-sqrt(15))/sqrt(2) , the first leftmost open...
Mar 24, 2026
shahar
replied to the thread
arc in circle
.
No. I understand the geometric proof changes from place to place. I know in Israel, we can answer the question wiith table of argument...
Mar 24, 2026
shahar
reacted to
The Highlander's post
in the thread
arc in circle
with
Like
.
I don't understand the Hebraic content of your post but, unless it is saying something you haven't translated, I'm at a loss to know...
Mar 24, 2026
F
fresh_42
replied to the thread
arc in circle
.
נניח שהזווית היא 60°. אז אפשר לשאול מדוע אחת הזוויות גדולה פי שניים וחצי מכך. אבל איך אפשר בכלל לתאר גיאומטרית את 145°, הפתרון? :D...
Mar 24, 2026
The Highlander
replied to the thread
arc in circle
.
I understand that less than the Hebraic. 🤣
Mar 24, 2026
F
fresh_42
replied to the thread
arc in circle
.
How do you describe \measuredangle (BMC) = 70° geometrically? \overset{\frown}{AB}=\overset{\frown}{AC} is a definition. It...
Mar 24, 2026
The Highlander
replied to the thread
arc in circle
.
I don't understand the Hebraic content of your post but, unless it is saying something you haven't translated, I'm at a loss to know...
Mar 24, 2026
shahar
posted the thread
arc in circle
in
Geometry and Trig
.
The question is: Given: Arc BC size is 70 degree. Arc AB = Arc AC. Find the size of the arcs AB and AC. The source: נתון: הקשת BC היא...
Mar 24, 2026
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