Fourth Grade Math Vocabulary Part 1

1. Half of the diameter is?

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

2. An octagon is an example of a?

A) concave compass
B) concentric circle
C) polygon
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) concave
B) convex
C) circumferential
D) radial

5. Two rays meet together. They form a?

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

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

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

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

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

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

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

9. What are you if you have two endpoints?

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

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

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

11. Define concave

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

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

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