Higher Math - Calculating the Minimum Perimeter of a Triangle
2012年10月12日 · 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 …
Express as a Function. | Math Help Forum
2011年6月27日 · 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 +...
Perimeter of a circle as a limit of inscribed regular sided polygon
2024年9月9日 · 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 …
Rectangular Package | Math Help Forum
2010年10月4日 · 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 package, …
Norman window problem - Math Help Forum
2008年8月31日 · 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 …
find the the dimensions of x and y | Math Help Forum
2009年12月3日 · a. Find a formula for the area b. find a formula for the perimeter c. find the dimensions x and y that maximize the area given that the perimeter is 100 . * See attachment for details!!! I know …
Relationship between Area of Square and Rectangle - Math Help Forum
2009年11月3日 · The perimeter of the square has length 160 mm. How much longer is the perimeter of the rectangle than the perimeter of the square? (b) Same question but this time the perimeter of the …
Changing dimension in a rectangle - Math Help Forum
2006年10月16日 · 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= 5cm, …
Perimeter of right triangle with inscribed circle
2015年5月14日 · Question: The radius of the inscribed circle is 5. If the length of the hypotenuse of the right triangle ABC is 19, what is the perimeter of the triangle?
Summing areas of squares | Math Help Forum
2008年4月14日 · 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. …