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Pythagoream Theorm
| Question | Answer |
|---|---|
| right triangles have | -2 legs -1 right angle -hypotenuse |
| hypotenuse | -not connected to the right angle -always the longest side |
| Pythagorean theorm | in a right triangle, the sum of the squares of the length of the legs is equal to the square of the length of the hypotenuse a²+b²=c² |
| converse of the pythagoren theorm | in a triangle, if the sum of the squares of the two shorest sides is equal to the square of the longest side, the triangle is a right triangle |
| notes | every word probelm needs a digram with the sides labeled and the snwer in a complete sentence |
| Radicals can only be added or subtracted if | they are like radicals (the inside of the radical is the same) |
| to add or subract radicals, one must | add or subract the "coeficients" but keep the radical part the same -simplify further if possible -Simplifying first is an option |
| radicals can only be multiplied or dividing if | -HAHAHH like radicals are not nesecary all radicals can be multiplied or divided |
| to multiply or divide radicals, one must | 1. multiply outer parts 2. multiply inner parts 3. simplify (you can do it first too) |
| when multiplying with radical binomials, | use distributive property or the box method simplify the expressions in the box BEFORE collecting like terms |
| radicals can never be | in the denominator |
| methods for solving radicals with fractions | 1. cancle out 2. rationalizing the denominator |
| rationalizing the denominator | multiply both the numerator and the denominator by the radical prtion found in the denominator |
| if the demoninator has a radical binomial... | use the conjugate to rationalize the denominator |
| conjugate | the sum and difference of the same two terms |