Fourth Grade Math Vocabulary Part 1

1. Half of the diameter is?

A) a concentric circle
B) the circumference
C) the radius
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 line having one endpoint.
B) a line having a beginning and end.
C) the point at which two lines meet.
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) diameter
B) compass
C) regular polygon
D) vertex

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

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

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

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

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

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

9. What are you if you have two endpoints?

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

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

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

11. Define concave

A) polygons having two or more angles pushed inward
B) a polygon whose sides and angles are equal in measure
C) polygons having all angles pointed outward
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) radius
B) diameter
C) vertices
D) circumference

13. All of my sides and angles are equal in measure. I am a?

A) line segment
B) regular polygon
C) falsified polygon
D) concentric circle

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