Fourth Grade Math Vocabulary Part 1

1. Half of the diameter is?

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

2. An octagon is an example of a?

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

3. A ray is?

A) a line having one endpoint.
B) a tool for drawing circles.
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) radial
D) concave

5. Two rays meet together. They form a?

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

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

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

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

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

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

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

9. What are you if you have two endpoints?

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

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

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

11. Define concave

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

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

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

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