Topic: What is the surface area for .? math homework?**Question:**
Surface area of a cylinder?
Area of a trapezoid?
Area of a triangle?
Volume of a pyramid?
volume of a cylinder?
Volume of a cone?

June 18, 2019 / By Agnes

Surface area of a cylinder?2 pi r^2 + 2 pi r h Area of a trapezoid? 1/2h(b+b1) Area of a triangle? 1/2bh Volume of a pyramid? lwh(1/3) volume of a cylinder? pi r^2h Volume of a cone? 1/3 pi r^2h

👍 280 | 👎 6

Did you like the answer? I'm not sure what level you're at, but I think an interesting dissertation could consider chirality. This is the nature of things to have a non-superimposable mirror image. Consider your hands. Your left hand and right hand are mirror images of one another, but they are not the same! Chemicals can be the same way. A great chemist Pasteur discovered left- and right-handed crystals under a microscope and picked them apart with tweezers. This was a historic moment as he discovered chirality just by making a chance observation. Mixtures of right- and left-handed molecules are called racemic mixtures. Drugs used to be racemic, until it was discovered that the two could have drastically different effects! The landmark case was that of thalidomide. The origin of the Food and Drug Administration can be traced back to problems with thalidomide. "Thalidomide is racemic – it contains both left- and right-handed isomers in equal amounts. The (R) enantiomer is effective against morning sickness but the (S) is teratogenic and causes birth defects." Practically everything in a living organism occurs as only one enantiomer (the name for left vs right-handed molecules). Scientists still have no idea how this happened. This is also why drug enantiomers can have different effects.

Write the dissertation about finding the origin of bacteria in our water. For example, Lake Washington near Seattle had to close some beaches because of a high bacterial count and it was found that the main culprit was dog feces. Previously it was thought that geese feces caused the problem. Since we don't have much industry anymore and we have been drastically increasing our dog flocks, chemical pollution is down but bacterial pollution is up big time.

in order to get the answer, you need first the formulas: for the area of cylinder:2(pi * radius2) + 2 * pi * radius * height area of trapezoid: height * (base1 + base2) / 2 area of triangle: base * height / 2 volume of pyramid: (1/3) * (base area) * height volume of cylinder: pi * radius2 * height volume of cone: (1/3) * pi * radius2 * height

👍 120 | 👎 -1

floor section incorporates the two bases and the realm of the cylinder. SA = 2(pi)r^2 + 2(pi)rh your radius is (a million/2)sixty 5 = sixty 5/2mm and your h = 70mm quantity would be cubic so (pi)r^2 cases h = quantity.

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1. Set up equations according to the problems. 2. Solve by elimination. -25[x+y=4903] 25x+35y=155155 10y=32580 x=3258 3258+y=4903 y=1645 3,258 all day ride tickets 1,645 ride tickets

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