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  1. Perimeter of a circle as a limit of inscribed regular sided polygon

    Sep 9, 2024 · Show that the perimeter Pn of an n-sided regular polygon inscribed in a circle of radius r is P n = 2 n r sin (π n) Find the limit of Pn as n approaches ∞ My attempt: The sum of the interior …

  2. Upper and Lower Bounds - Math Help Forum

    Mar 9, 2010 · To granddad Really sorry if i am getting back to you on this. For the first question perimeter of square , the data was the following: Upper bound perimeter=27.26cm Lower bound …

  3. Equilateral Triangle Inscribed in Circle | Math Help Forum

    Jan 22, 2007 · An equilateral triangle is inscribed in a circle of radius r. Express the circumference C of the circle as a function of the length x of a side of the triangle. HINT GIVEN: First show that r^2 = …

  4. SOLVED - [SOLVED] Optimization Problem argh | Math Help Forum

    Jul 12, 2007 · L = 0 . . . . What's going on? It is fairly well-known that, for a given perimeter, . . the figure with maximum area is a circle. So for maximum area, the track should be circular. But we are told …

  5. [SOLVED] Maximization of pentagon area... | Math Help Forum

    Oct 18, 2009 · A pentagon is formed by placing an isosceles triangle on a rectange. If the pentagon has fixed perimeter P, find the lengths of the sides of the pentagon that maximize the area of the …

  6. Higher Math - Semi regular hexagon question | Math Help Forum

    Oct 8, 2016 · One more math problem puzzle part...any help appreciated: Semi-regular hexagon GHJKLM is circumscribed by circle O. If GH = 2 HJ = JK = 2 KL = LM = 2 MG and if GK ...

  7. Perimeter Word Problem | Math Help Forum

    Jun 29, 2010 · A standard rectangular billboard sign has a perimeter of 124 ft. The length is 6 ft. more than three times the width. Find the dimensions of the sign...

  8. Summing areas of squares | Math Help Forum

    Apr 14, 2008 · A square S1 has a perimeter of 40 inches. The vertices of a second square S2 are the midpoints of the sides of S1. The vertices of a third square S3 are the midpoints the sides of S2. …

  9. Optimizing a Norman Window - What am I doing wrong?

    Oct 5, 2007 · A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of the rectangle. What is the area of the largest possible Norman …

  10. Perimeter of a rectangle. - Math Help Forum

    May 29, 2010 · How would I find the answer to... A rectangular flat-screen computer monitor has a diagonal that measures 20 inches. The ratio of the length of the screen to the width of the screen is 4 …