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### 15 Cards in this Set

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 What is the side ratio for an isoceles right triangle? 1:1:square root of 2 (sq. root of 2 is across from the right angle) What is the side ratio for a 30-60-90 right triangle? 1 (across from 30^), sq. root of 3 (across from 60^) and 2 (across from 90^) Special right triangle ratios, 3-4-5 and? 5-12-13 Is 1 a prime number? NO! What is the lowest, only even prime number? 2 Formula for rate? Quantity A/Quantity B Formula for % increase? new amt-original amt/original amt x 100 Circumference of a circle? c=2(pi)r or (pi)d x^a/x^b =? x^a-b x^a * x^b=? x^a+b How do you use the AVERAGE to find the SUM? Sum = (Average) * (Number of Terms) Area of a circle=? =(pi)r^2 Circumference of a circle? =2(pi)r or (pi)d Reduce the square root of 75 sq.rt of 25 * square root of 3 =5*sqrt.of 3 What does "inclusive" mean when finding a median? Inclusive means to go ahead and "include" the numbers on the ends.