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  • The Highlander
    The Highlander replied to the thread areas in regular octagon.
    Not a problem, I know English is not your native tongue (Hebrew, is I believe?) and that English is a very difficult language to master...
  • C
    chijioke replied to the thread Trigonometry problem.
    I am now very cleared. Thank you so much.
  • shahar
    shahar replied to the thread areas in regular octagon.
    Yes. I do my Math matriculation in 2000. So, Now as Adult I forgot many things. I tried to edit your message and to put in, but I very...
  • K
    khansaheb reacted to The Highlander's post in the thread areas in regular octagon with Like Like.
    I'm afraid that is very poorly written out! ☹️ I'm doubtful if it would gain you anything close to full marks in a test but (I think)...
  • The Highlander
    The Highlander replied to the thread areas in regular octagon.
    I'm afraid that is very poorly written out! ☹️ I'm doubtful if it would gain you anything close to full marks in a test but (I think)...
  • shahar
    shahar replied to the thread areas in regular octagon.
    Yes. The first blank space is l^2 tbe -nd is 1/2 * l * l = (l^2)/2 s^2 = 2l^2 in the -rd is 1/2(4 * l^2) = 2l^2 now, Areas are equal.
  • The Highlander
    The Highlander replied to the thread Trigonometry problem.
    Yes, that is the symbol for a right angle and, although the altitude appears to bisect the apex, it clearly does not (as seen by the...
    • 1772540874284.png
  • C
    chijioke replied to the thread Trigonometry problem.
    You mean that sign I indicated with green arrow is a sign of a right angle?
    • IMG_20260303_125926.jpg
  • The Highlander
    The Highlander replied to the thread Trigonometry problem.
    You know that ∠BAC is 90° because it is marked as such (in the original drawing).
  • The Highlander
    The Highlander replied to the thread areas in regular octagon.
    So, have you completed the exercise? Please show us your working... (Laid out like this?) It is easily demonstrated that, by...
    • 1772535824332.png
  • B
    Hi, I’m a new user, so please be patient. I can find pics and animations of a rotating circle generating a sine wave using y=r sin (wt)...
  • shahar
    shahar replied to the thread areas in regular octagon.
    Thank you. Long time I haven't deal with geometry.
  • shahar
    shahar reacted to The Highlander's post in the thread areas in regular octagon with Like Like.
    Assuming that the overall shape forms a regular octagon, meaning all outer edges are equal in length, then the central square has side...
  • C
    chijioke replied to the thread Trigonometry problem.
    Yes I fully understand now? But I still want to ask. How will one know that angle BAC is 90 degree? I am asking this question because I...
  • K
    khansaheb replied to the thread areas in regular octagon.
    Please respond to the following questions: Assume each side of the octagon is L. What is the measure of "interior angle" of the octagon...
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