Fourth Grade Math Vocabulary Part 1

1. Half of the diameter is?

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

2. An octagon is an example of a?

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

3. A ray is?

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

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

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

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) 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 compass
C) a circumference
D) a polygon

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

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

9. What are you if you have two endpoints?

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

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

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

11. Define concave

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

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

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

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