1.   Classify by its angles and sides.
   
    A. obtuse equilateral B. acute equilateral
    C. obtuse isosceles D. acute isosceles
    Hint

  2.   Find in .
   
    A. 41° B. 131°
    C. 103° D. 62°
    Hint

  3.   What is in ?
   
    A. 41 B. 49
    C. 13 D. 90
    Hint

  4.   The measures of the angles of a certain triangle are in the ratio 2:4:9. What are the measures of the angles?
    A. 24°, 48°, 108° B. 22°, 44°, 99°
    C. 28°, 56°, 126° D. 20°, 40°, 90°
    Hint

  5.   Classify the triangle by its angles and by its sides.
   
    A. acute, equilateral B. right, scalene
    C. acute, isosceles D. right, isosceles
    Hint



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