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31 Cards in this Set
- Front
- Back
parallelogram area?
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a*h
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ellipse area?
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(π)ab
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trapezoid area?
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(1/2)h*(b+a)
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cube volume?
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s³
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rectangular prism volume?
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a*b*c
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cylinder volume?
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πr²h
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pyramid volume?
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(1/3)bh
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cone volume?
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(1/3)π(r²)h
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sphere volume?
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(4/3)π(r³)
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ellipsoid volume?
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(4/3)π*r1*r2*r3
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cube surface area?
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6s²
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rectangular prism surface area?
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2(ab)+ 2(ac) +2(bc)
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sphere surface area?
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4πr²
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in a 45-45-90 right triangle what are side lengths
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x, x, and x√2
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in a 30-60-90 right triangle- what are the side lengths
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x, x√3 and 2x
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if A is area of equilateral triangle with sides s, what is area of A
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A= (s²√3)¼
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what are 2 triangle inequality theorems?
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a+b>c and a-b<c
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what is the sum of all four angles of parallelogram?
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360 degrees
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what is properties of parallelograms
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opposite sides are equal
opposite angles are equal adjacent angles add up to 180 degrees the diagonals bisect each other |
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what is the formula for the length of an arc in x degrees?
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(x/360)(2πr)
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what is formula for the area of a sector formed by an arc?
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(x/360)(πr²)
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what is equation for the nth term of arithmetic sequence whose common difference is d?
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A(n)= A(1) + (n-1)d
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what is equation for the nth term of geometric sequence whose common ratio is r?
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A(n)= A(1)r^(n-1)
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for systems of linear equations like what is xy if 2x+y=10 and x-y=2 what do u do?
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add or subtract the equations (xy=8)
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for solving something w/ variable in denominator what do u do
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multiply all terms by variable to get variable out of denominator
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is one a prime number
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no
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is 0 an even integer?
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yes
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what are sets?
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collections of elements or members
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what is a union of sets and what is the symbol?
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a union of sets consists of all elements in A and B
symbol is U so AUB |
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what is intersection of sets and what is the symbol?
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a set consisting of only elements that are in both A and B sets
symbol is backwards U (П) so AПB |
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what is solution set?
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set of numbers that satisfies the equation
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