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PRECALC.LZH
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FORM001.HLP
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1987-09-01
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74 lines
Review of Useful Facts and Formulae.
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All calculus instructors expect you to know the following, even if no
explicit reference is made to them. For example, even though I might never
mention an isosceles triangle in class, I wouldn't hesitate to set an exam
question which would involve knowing the properties of such a triangle.
The area of a triangle with vertical height h and base length b is bh/2 .
2
The area of a square with side length a is a .
The area of a rectangle with side lengths a and b is ab.
The area of a parallelogram with vertical height h and base length b is bh.
2
The area of a circle with radius r is πr .
The diameter of a circle with radius r is 2r .
The circumference of a circle with radius r is 2πr .
3
The volume of a cube of side length a is a .
2
The surface area of a cube of side length a is 6a .
The volume of a shoe box with side lengths a, b and c is abc .
The surface area of a shoe box with side lengths a, b and c is
2(ab + ac + bc).
2
The volume of a cylinder with height h and base radius r is πhr .
The surface area of a cylinder with height h and base radius r is 2πrh.
3
The volume of a sphere with radius r is 4πr /3 .
2
The surface area of a sphere with radius r is 4πr .
The distance between the point (x, y) and the point (a, b) is
_______________________
▌ 2 2
\▌ (x - a) + (y - b) .
An isosceles triangle has at least two sides of equal length.
An equilateral triangle has all three sides of equal length.
Speed = distance/time.
This is the end of the help file. Press the ESC key to return to the quiz
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