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  1. 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 …

  2. Perimeter of Triangle - Math Help Forum

    Sep 10, 2008 · Given a point (a,b) with 0 < b < a, determine the minimum perimeter of a triangle with one vertex at (a,b), one on the x-axis, and one on the line y=x. Thanks!

  3. Rectangular Package | Math Help Forum

    Oct 4, 2010 · A Rectangular package sent by a delivery can have a maximum combined length and girth (perimeter of a cross section) of 120 inches. Here, there is a picture, which is a 3D …

  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 …

  5. Express as a Function. | Math Help Forum

    Jun 27, 2011 · A rectangle has area 64 m2. (a) Express the perimeter of the rectangle as a function of the length (L) of one of its sides. I came up with A (L) = 2x +...

  6. Divide a square into 7 equal parts - Math Help Forum

    Dec 7, 2007 · Can you help me devide a square into seven equal parts? Each having the same amount of perimeter and the same area? It seems like everything I do I just end up with 8 …

  7. Changing dimension in a rectangle - Math Help Forum

    Oct 16, 2006 · so where do i start for this problem? the length l of a rectangle is decreasing at the rate of 2 cm/sec while the width w is increasing at the rate of 2 cm/sec. when l=12cm and w= …

  8. perimeter - Math Help Forum

    Nov 1, 2009 · Two unequal circles (radius x and y, x > y) are touching each other. A rubber band is passed around both of them. What would be the length of the rubber band?

  9. Domain of a rational function | Math Help Forum

    Aug 27, 2011 · A rectangle has area 16 m2. Express the perimeter of the rectangle as a function of the length L of one of its sides.

  10. Area of a Regular Pentagon | Math Help Forum

    Feb 28, 2010 · The perimeter of the building has the shape of a regular pentagon with each side of length 921 ft. Find the area enclosed by the perimeter of the building.