Geometry Terms - chapter 11

Question 1

center of a sphere

Answer 1

the point inside a sphere that is the same distance from every point on the sphere

Question 2

cone

Answer 2

a three-dimensional figure with a circular base and a curved lateral surface that connects the base to a point called the vertex

Question 3

cross section

Answer 3

the intersection of a three-dimensional figure and a plane

Question 4

cube

Answer 4

a prism with six square faces

Question 5

cylinder

Answer 5

a three-dimensional figure with two parallel congruent circular bases and a curved lateral surface that connects the bases

Question 6

edge of a three-dimensional figure

Answer 6

a segment that is the intersection of two faces of the figure

Question 7

face of a polyhedron

Answer 7

a flat surface of the polyhedron

Question 8

great circle

Answer 8

a circle on a sphere that divides the sphere into two hemispheres

Question 9

hemisphere

Answer 9

half of a sphere

Question 10

net

Answer 10

a diagram of the faces of a three-dimensional figure, arranged in such a way that the diagram can be folded to form the three-dimensional figure

Question 11

prism

Answer 11

a polyhedron formed by two parallel congruent polygonal bases, connected by lateral faces that are parallelograms

Question 12

pyramid

Answer 12

a polyhedron formed by a polygonal base and triangular lateral faces that meet at a common vertex

Question 13

radius of a sphere

Answer 13

a segment whose endpoints are the center of a sphere and any point on the sphere

Question 14

sphere

Answer 14

the set of points in space that are a fixed distance from a given point called the center

Question 15

vertex of a three-dimensional figure

Answer 15

the point that is the intersection of three or more faces of the figure

Question 16

volume

Answer 16

the number of nonoverlapping unit cubes of a given size that that will exactly fill the interior of a three-dimensional figure