1.   Given the lengths of the sides of a triangle, which of the following is not a right triangle?
    A. 3, 4, 5 B. 6, 8, 10
    C. 10, 12, 15 D. 5, 12, 13
    Hint

  2.   A 12-ft ladder is placed 5 feet from a building. Approximately how high does the ladder reach?
    A. 11 ft B. 13 ft
    C. 8 ft D. 10 ft
    Hint

  3.   The following are lengths of sides of various triangles. Which one is a right triangle?
    A. 8, 9, 10 B. 18, 24, 30
    C. 3, 4, 7 D. 5, 19, 25
    Hint

  4.   The following are lengths of sides of various triangles. Which one is not a right triangle?
    A. 9, 12, 15 B. 7, 24, 25
    C. 5, 12, 13 D. none of the others
    Hint

  5.   Many baseball diamonds have 90 feet between each of the bases. At each base, one must turn 90? to get to the next base. So the points at home plate, first base, and second base form a right triangle. To the nearest foot, how long is the hypotenuse, which is the distance between home plate and second base?
   
    A. 90 feet B. 127 feet
    C. 8100 feet D. 162 feet
    Hint



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