Geometry ---- Classifying Triangles 10/17/09

15 Questions | Total Attempts: 114

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Triangle Quizzes & Trivia

Write the letter for the correct term beside each triangle description.


Questions and Answers
  • 1. 
    Sides lengths are 3cm, 4cm, and 6cm.
    • A. 

      Right

    • B. 

      Obtuse

    • C. 

      Acute

    • D. 

      Scalene

    • E. 

      Isosceles

  • 2. 
    Angle measures are 40*, 60*, and 80*.
    • A. 

      Right

    • B. 

      Obtuse

    • C. 

      Acute

    • D. 

      Scalene

    • E. 

      Isosceles

  • 3. 
    Angle measures are 25*, 10*, and 145*.
    • A. 

      Right

    • B. 

      Obtuse

    • C. 

      Acute

    • D. 

      Scalene

    • E. 

      Isosceles

  • 4. 
    Side measures are 6in, 5in, and 6in.
    • A. 

      Right

    • B. 

      Obtuse

    • C. 

      Acute

    • D. 

      Scalene

    • E. 

      Isosceles

  • 5. 
    Angle measures are 30*, 60*, and 90*.
    • A. 

      Right

    • B. 

      Obtuse

    • C. 

      Acute

    • D. 

      Scalene

    • E. 

      Isosceles

  • 6. 
    A triangle _________________ has a right angle and an obtuse angle.
    • A. 

      Sometimes

    • B. 

      Always

    • C. 

      Never

  • 7. 
    The acute angles of a right triangle are ___________ complementary.
    • A. 

      Sometimes

    • B. 

      Always

    • C. 

      Never

  • 8. 
    An obtuse triangle is ___________ an isosceles triangle.
    • A. 

      Sometimes

    • B. 

      Always

    • C. 

      Never

  • 9. 
    An isosceles triangle is ____________ an equilateral triangle.
    • A. 

      Sometimes

    • B. 

      Always

    • C. 

      Never

  • 10. 
    A triangle's angles ____________ add to 180*
    • A. 

      Sometimes

    • B. 

      Always

    • C. 

      Never

  • 11. 
    A triangle with two 45* angles
    • A. 

      Right

    • B. 

      Acute

    • C. 

      Obtuse

  • 12. 
    A triangle with a 102* angle
    • A. 

      Acute

    • B. 

      Obtuse

    • C. 

      Right

  • 13. 
    A triangle in which all angles measure 60*
    • A. 

      Obtuse

    • B. 

      Scalene

    • C. 

      Aute

  • 14. 
    A triangle in which side measures are 2m, 4m, and 7m.
    • A. 

      Equianglar

    • B. 

      Obtuse

    • C. 

      Scalene

  • 15. 
    A triangle in which angle measures are 45*, 55*, and 80*
    • A. 

      Right

    • B. 

      Scalene

    • C. 

      Obtuse

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