Fourth Grade Math Vocabulary Part 1

1. Half of the diameter is?

A) the circumference
B) a regular polygon
C) a concentric circle
D) the radius

2. An octagon is an example of a?

A) polygon
B) concentric circle
C) concave compass
D) convex segment

3. A ray is?

A) a line having a beginning and end.
B) a tool for drawing circles.
C) a line having one endpoint.
D) the point at which two lines meet.

4. Polygons having all angles pointed outward would be considered?

A) convex
B) concave
C) radial
D) circumferential

5. Two rays meet together. They form a?

A) regular polygon
B) vertex
C) diameter
D) compass

6. The equator gives us an example of a/an?

A) endpoint
B) radius
C) line segment
D) circumference

7. If you wanted to draw a circle, you would use which tool?

A) a radial iron
B) a polygon
C) a circumference
D) a compass

8. What is Mr. Littlefield's favorite drink?

A) Kool-Aid
B) Chocolate Milk
C) Mt. Dew
D) Coke

9. What are you if you have two endpoints?

A) concave
B) a line segment
C) a ray
D) a vertex

10. If circles share the same center, they are considered?

A) circumferential
B) concentric circles
C) regular polygons
D) radial

11. Define concave

A) polygons having all angles pointed outward
B) a line segment from the center of the circle to any point on its circumference
C) a polygon whose sides and angles are equal in measure
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) diameter
B) circumference
C) vertices
D) radius

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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