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For circle area: pi times radius squared. For circle circumference: 2 times pi times radius, for Square area: take the length of one side (doesn't matter which one because they are all equal) and square the number. For parallelogram area: take the base (bottom) and times it by the height (usually going up the middle.) For triangle area: take half of the base or height and times it by the whole base or height. For trapezoid area: the equation is half ( a side plus b side) times height. for rectangle area: width times height.
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What is a formula in algebra or prealgebra?
pethagoreum theory a2+b2=c2
What is the LCM of 20 and 25 and 20?
It is 100 If you need more answers go to Mathway.com under prealgebra.
How do you know when a chart is function prealgebra?
If you put a vertical ruler anywhere on the chart, it hits the chart line at most once.
How many ways can the letters in prealgebra can arranged?
The number of permutations of the letters in PREALGEBRA is the same as the number of permutations of 10 things taken 10 at a time, which is 3,628,800. However, since the letters R, E, and A, are repeated, R=2, E=2, A=2, you must divide that by 2, and 2, and 2 (for a product of 8) to determine the number of distinctpermutations, which is 453,600.
How are these formulas helpful in working with triangles?
It might have helped to have some idea as to what "these" formulas" were.
