Geometry Vocabulary Challenge

What is the term for the line that goes through the center of a circle and touches both sides?

• Chord

• Diameter

• Radius

• Circumference

If the diameter of a circle is 10 cm, what is the radius?

• 20 cm

• 5 cm

• 2 cm

• 10 cm

How many faces does a rectangular prism have?

• 5

• 4

• 8

• 6

What is the term for the line segment where two faces of a 3D shape meet?

• Base

• Face

• Edge

• Vertex

How many vertices does a rectangular prism have?

• 6

• 8

• 10

• 12

What is the term for the point where three or more edges intersect?

• Face

• Edge

• Base

• Vertex

How many bases does a pyramid have?

• 4

• 3

• 2

• 1

What is the name of a 3D shape with a triangular base and a point on top?

• Triangular prism

• Rectangular prism

• Triangular pyramid

• Square pyramid

Which 3D shape has two circular bases and a curved surface?

• Pyramid

• Sphere

• Cylinder

• Cone

What is the name of a 3D shape that is perfectly round and has no edges or vertices?

• Cone

• Cylinder

• Cube

• Sphere