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__7.1 Surface Area and Volume__

 * surface area and volume formulas**

=2lw + 2wh +2lh or 6s²=
 * The surface area of a right rectangular prism (SA)**

The volume of a right rectangular prism is (V) =lhw or Vs= l = length s = side w = width h = hight

=__7.2 Suface Area and Volume of Prisms__=

The surface area of a right prism with lateral area(SA)= L +2B or S =hp+2B
Cavalieri's Principle states that two solids have equal hieghts and that every plane parallel to the bases of both solids have equal area + equal volumes.

The volume of a prism (V) = base times the hight
l = lengh b = base h = height p = perimeter

__7.3 Surface Area and Volume of Pyramids__


B = base H = height l = slant height L = lateral area
 * The surface area of a regular pyramid can be found by the equasion's L + B or 1/2lp + B**
 * The volume of a pyramid with a base and with a height is found by 1/3BH**

__7.4 Surface Area and Volume of Cylinders__
//l = lateral area// //B = Base// //r = radius// H = Height
 * The surface area of a right cylinder with lateral area, base area, radius, and height is found with equasions L + 2B or 2//πrh + 2////πr²//**
 * The volume of a cylinder can be found with the equasion's BH or //πr²h//**

__7.5 Surface Area and Volume of Cones__
//B = Base area// //H = Height// //L = Lateral area// //l = lateral height// //r = radius//
 * Surface area of a right cone with lateral and base area, radius and slant height is found with L + B or //πrl +// //πr²//**
 * Volume with radius, height, and base area can be found with 1/3BH or 1/3//πr²H//**

__7.6 surface and volume of spheres__
//r = radius//
 * Volume of a sphere with a radius is found by 4/3//πr³//**
 * The surface area of a sphere and with a radius is found by 4//πr²//**