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