Fourth Grade Math Vocabulary Part 1
  • 1. Half of the diameter is?
A) the circumference
B) a concentric circle
C) a regular polygon
D) the radius
  • 2. An octagon is an example of a?
A) convex segment
B) concave compass
C) concentric circle
D) polygon
  • 3. A ray is?
A) the point at which two lines meet.
B) a line having a beginning and end.
C) a line having one endpoint.
D) a tool for drawing circles.
  • 4. Polygons having all angles pointed outward would be considered?
A) convex
B) circumferential
C) concave
D) radial
  • 5. Two rays meet together. They form a?
A) regular polygon
B) compass
C) diameter
D) vertex
  • 6. The equator gives us an example of a/an?
A) line segment
B) radius
C) endpoint
D) circumference
  • 7. If you wanted to draw a circle, you would use which tool?
A) a radial iron
B) a polygon
C) a compass
D) a circumference
  • 8. What is Mr. Littlefield's favorite drink?
A) Chocolate Milk
B) Mt. Dew
C) Coke
D) Kool-Aid
  • 9. What are you if you have two endpoints?
A) a vertex
B) a line segment
C) a ray
D) concave
  • 10. If circles share the same center, they are considered?
A) regular polygons
B) concentric circles
C) radial
D) circumferential
  • 11. Define concave
A) a polygon whose sides and angles are equal in measure
B) a line segment from the center of the circle to any point on its circumference
C) polygons having all angles pointed outward
D) polygons having two or more angles pushed inward
  • 12. This is a line segment that passes through the center of a circle with endpoints on its circumference.
A) vertices
B) radius
C) diameter
D) circumference
  • 13. All of my sides and angles are equal in measure. I am a?
A) line segment
B) regular polygon
C) concentric circle
D) falsified polygon
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