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  1. Higher Math - Calculating the Minimum Perimeter of a Triangle

    Oct 12, 2012 · No triangle exists that minimizes that condition. However, the infinum of the perimeters of all such triangles = twice the distance from (a,b) to the line y = x. That's just an application of the …

  2. Perimeter of Athletic Lanes | Math Help Forum

    Jul 1, 2009 · An athletic track has four lanes. The lanes are 1 metre apart. If the inside lane is exactly 400 m, with 100m straights, find the lengths of the other three lanes. Can I please have an …

  3. Norman window problem - Math Help Forum

    Aug 31, 2008 · A Norman window has the shape of a rectangle surmounted by a semicircle. If the perimeter of the window is 38 ft, express the area A of the window as a function of the width x of the …

  4. 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 …

  5. Surveying Property (Law of Sines) | Math Help Forum

    Apr 22, 2012 · Then did the math, and since it asked for the perimeter I added all 3 sides after i used law of sines to find the sides. Basically I got a really big answer, (the answer is 1425 ft). View attachment …

  6. Use the figure to find the approximate perimeter of RSTU.?

    Sep 6, 2009 · Use the figure to find the approximate perimeter of RSTU. A) 72.5 in. B) 73.6 in. C) 72.0 in. D) 73.0 in. E) 71.8 in. B you have to find the length of the sides first ...

  7. 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 …

  8. [SOLVED] SAT math page 656 | Math Help Forum

    Sep 28, 2008 · In the figure below, PQRS is a rectangle, and points Q and R lie on the graph of y=ax^2, where a is a constant. If the perimeter of PQRS is 10, what is the value of a ...

  9. Find Dimensions of Rectangle | Math Help Forum

    Nov 8, 2008 · A special window in the shape of a rectangle with semicircles at each end is to be constructed so that the outside dimensions are 100 feet in length. Find the dimensions of the …

  10. SOLVED - Percentage increase in area of rectangle given increase in ...

    Aug 29, 2010 · One side of a rectangle is three times the other. If the perimeter increases by 2% what is the percentage increase in area?