Geometry Definitions
  • 1. acute triangle
A) all angles measure more than 90 degrees
B) all angles measure less than 90 degrees
C) has one obtuse angle
D) the sum of all the angles is less than 90 degrees
  • 2. acute angle
A) more than 90 degrees
B) exactly 180 degrees
C) exactly 90 degrees
D) less than 90 degrees
  • 3. obtuse angle
A) measures more than 90 degrees, but less than 180 degrees
B) measures 180 degrees
C) measures exactly 90 degrees
D) measures less than 90 degrees
  • 4. obtuse triangle
A) has no obtuse angles
B) has one obtuse angle
C) has two obtuse angles
D) the sum of all three angles equals 105 degrees
  • 5. right angle
A) measures 180 degrees
B) measures exactly 90 degrees
C) measures more than 90 degrees
D) measures less than 90 degrees
  • 6. right triangle
A) has two right angles
B) has no right angles
C) has one right angle
D) the sum of all three angles equals 90 degrees
  • 7. straight angle
A) measures more than 180 degrees
B) the sum of the length of the angles equals 180 degrees
C) measures less than 180 degrees
D) exactly 180 degrees
  • 8. equilateral triangle
A) no sides are the same length
B) has 4 sides
C) all sides are the same length
D) only 2 sides are the same length
  • 9. isosceles triangle
A) a new sauce for your chicken nuggets
B) has 5 sides
C) no sides are the same length
D) two or more sides are the same length
  • 10. scalene triangle
A) exactly two sides are the same length
B) no sides are the same length
C) all sides are the same length
D) two or more sides are the same length
  • 11. triangle
A) polygon with four sides
B) polygon with six sides
C) polygon with five sides
D) polygon with three sides
  • 12. angle
A) something that has wings
B) two rays having a common endpoint
C) always exactly 90 degrees
D) a polygon
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