TRINITY MATH TRIATHLON

Round 1

1. Any quadrilateral  [Answer: any four sided figure, convex or concave]
2. An estimation of  (Pi)  [A: 3 or 3.1 or 3.14 or 3.141 or 3.1415 or . . . or 22/7]
3. A prime number  [A: 2 or 3 or 5 or 7 or 11 or 13 or . . .]
4. An equation of a line  [A: y=mx+b or ax+by=c for numbers m, b, a, b, c]
5. A fraction   [A: any a/b]
6. A set of keys.
7. The prime factors of 12.  [A: 12 = 2*2*3]
8. The greatest common divisor of 16 and 7. [A: 1]
9. The square root of 144.  [A: 12]
10. Any hexagon.   [A: any six sided figure]

Round 2

1. The area formula for a triangle [A: Area = ½ bh]
2. The least common multiple of 8 and 6. [A: 24]
3. The numerical value of 2 cubed.  [A: 8]
4. A pair of glasses
5. Any integer   [A: any counting number or negative of a counting number or 0]
6. The number of schools represented at this Trinity Math Triathlon [A: 13 expected]
7. A pair of numbers that add to - 5 [A:  -9 + 4 or -8 + 3 or . . .]
8. An obtuse angle  [A: any angle with measure greater than 90 degrees]
9. A piece of lint
10. An irrational number  [A:  or sqrt(2) or sqrt(3) or sqrt(5) or e or . . .]

Round 3

1. Any improper fraction [A: any fraction with top larger than bottom]
2. A dollar bill
3. A pair of numbers whose product is 24 [A: 1*24 or 2*12 or 3*8 or 4*6 or 48* ½ or . . .]
4. Any variable   [A: x or y or z or a or b or c or . . .]
5. The name of any month with 31 days [A: Jan, Mar, May, July, Aug, Oct, Dec]
6. The square root of 25  [A: 5]
7. The area of a square with side length 11 units [A: 121]
8. Any rhombus   [A: any four sided figure with equal sides, including a square]
9. A prime number larger than 40 [A: 41 or 43 or 47 or . . .]
10. The decimal equivalent of  ¾ [A: 0.75]

Round 4

1. The graph of the line x = 3 in the coordinate plane. [A: vertical line at x=3]
2. A proportion   [A: any fraction]
3. A sock not on someone's foot 
4. Any measuring device   [A: a ruler or a compass or . . .]
5. A leap year   [A: 2000 or 2004 or any year that is a multiple of 4]
6. A proper fraction larger than 7/8. [A: 8/9 or 9/10 or 10/11 or . . .]
7. The sum of the odd numbers from 1 to 15 [A: 64]
8. An octagon   [A: any eight-sided figure]
9. Any prime divisor of 91  [A: 7 or 13]
10. The name of the best college in the world. [A: Trinity Christian College]