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Question:and measure a solid with irregular shape?

Answers:well a CMM will do that, but an easier way is to place the object in a graduated container of water and measure the change in water level (assuming the object does not float.)

Question:I have a parcel with four sides with lengths of 111 on the north, 120 on the south, 83 on the west and 95 on the east. I do not know any of the angles and presume that none of them are right angles. Also presume that none of the sides are parallel to each other. I can't divide it into two triangles and calculate those areas using the formula 1/2 b X h because neither of the triangles would have a right angle. How do I go about calculating the area?

Answers:Use the Brahmagupta Formula, A = SqRt[(s-a)(s-b)(s-c)(s-d)], where a, b, c and d are the lengths of the four sides of the quadrilateral, and s = (a + b + c + d)/2. s = (111 + 120 + 83 + 95)/2 = 204.5 Area = Square Root [(204.5 - 111)(204.5 - 120)(204.5 - 83)(204.5 - 95)] = Square Root [93.5 x 84.5 x 121.5 x 109.5] = SqRt [105,113,553.2] = 10,252.4901

Question:d=diameter c= curcumfrence r= radius b= base h= height l= length w= width I need the formulas for a rectangular prism, a triangular prism, a cylendar, a sphere, and a cone. I left my math notes at school so help would be greatly apprecieated. Its for a test review, and I cant remember the formulas, so if you have a way of remembering them, that'd be great too. Nothing nessicary though. Thanks so much to whoever can help me

Answers:this is a good website http://www.math.com/tables/geometry/volumes.htm

Question:Please include links too, if possible. Thanks!

Answers:For additional information, please see also: http://en.wikipedia.org/wiki/Volume http://en.wikipedia.org/wiki/Perimeter http://en.wikipedia.org/wiki/Trigonometry http://en.wikipedia.org/wiki/Geometry http://en.wikipedia.org/wiki/Calculus "May The Lord Jesus Christ continue to bless you in all of your endeavors." Sincerely, willard-thomas_jr@yahoo.com (a.k.a. calvaliear)

From Youtube

Area of Irregular Polygons :Watch as Mr. Almeida explains how to find the area of irregular polygons. The key to finding the correct is to use your parallel lines as key pieces of information. Also, some shapes not always be composed of quadrilaterals, some may be made up of triangles. This will impact which formula you use. If it is a rectangle, then you will use A=lw, but if it is a triangle, you will use the formula A=1/2 xbx h.

Cell size shape and form :Check us out at www.tutorvista.com Shape and Size of Cells There exist cells which have a variable shape, such as the leukocytes, and some connective tissue cells and cells with a stable shape, such as the erythrocytes, epithelial cells, muscle cells and nerve cells. These stable cells always have typical more or less fixed shape which is a specific characteristic of each cell type. The shape of the cell depends partly on the surface tension and viscosity of the cytoplasm, the mechanical action which the adjoining cells exert, the rigidity of the membrane and the functional adaptation. Many cells when isolated in a liquid medium tend to take a spherical form, obeying the laws of surface tension. This is the case with the leukocyte which in the circulating blood are spherical, but by the influence of adequate stimuli can emit pseudopodia (ameboid movement) and become completely irregular in shape. The cells of many plant and animal tissues have a polyhedral shape, statistically more or less constant, determined principally by pressure from adjacent cells. In these cases, the original spherical form is modified by contact with the other cells. Individual cells in a large mass appear to behave like polyhedral solids of minimal surface packed without interstices. Although regular polyhedra of 4, 6 and 12 sides can be packed without interstices, the 14-sided polyhedron satisfies most closely the conditions of minimal surface. The volume of the cell is variable and oscillates ...