Ch. 7 - Geometry

Question 1

Geometry

Answer 1

The study of points, lines, angles, surfaces and solids

Question 2

Line Segment

Answer 2

Part of a line

Question 3

Ray

Answer 3

A line that has a beginning point but no end

Question 4

Angle

Answer 4

Two rays with the same endpoint

Question 5

Vertex

Answer 5

The point where two rays meet

Question 6

Plane

Answer 6

A flat surface that extends forever in all directions

Question 7

Parallel Lines

Answer 7

Lines that are always the same distance apart

Question 8

Intersecting Lines

Answer 8

Lines that cross in the same plane

Question 9

Perpendicular Lines

Answer 9

Intersecting lines that cross and form four right (90*) angles

Question 10

Circle

Answer 10

A plane figure whose points are equally distant from the center

Question 11

Degree

Answer 11

A measure of angles

Question 12

Acute Angle

Answer 12

Less than a right angle (between 0* and 90*)

Question 13

Right Angle

Answer 13

Formed by two perpendicular rays (90*)

Question 14

Obtuse Angle

Answer 14

Larger than a right angle but smaller than a straight angle (between 90* and 180*)

Question 15

Straight Angle

Answer 15

Two rays form a straight line (180*)

Question 16

Reflex Angle

Answer 16

Larger than a straight angle (between 180* and 360*)

Question 17

Protractor

Answer 17

A tool used to draw or measure angles

Question 18

Polygon

Answer 18

A closed plane figure with three or more sides

Question 19

Polygon Names

Answer 19

3 sides - Triangle
4 sides - Quadrilateral
5 sides - Pentagon
6 sides - Hexagon
7 sides - Heptagon
8 sides - Octagon
9 sides - Nonagon
10 sides - Decagon
12 sides - Dodecagon

Question 20

Triangle

Answer 20

A polygon with three sides

Question 21

Right Triangle

Answer 21

One angle is 90*

Question 22

Obtuse Triangle

Answer 22

One angle is more than 90*

Question 23

Acute Triangle

Answer 23

All angles are less than 90*

Question 24

Scalene Triangle

Answer 24

No sides are equal

Question 25

Isosceles Triangle

Answer 25

Two sides are equal

Question 26

Equilateral Triangle

Answer 26

All three sides are equal

Question 27

Quadrilateral

Answer 27

A polygon with four sides

Question 28

Square

Answer 28

A polygon with four equal sides and four right angles

Question 29

Rectangle

Answer 29

A four-sided polygon with four right angles and the opposite sides are equal

Question 30

Rhombus

Answer 30

A polygon with four equal sides and the opposite angles are equal

Question 31

Parallelogram

Answer 31

A four-sided polygon with two pairs of equal and parallel sides

Question 32

Trapezoid

Answer 32

A four-sided polygon with one pair of parallel sides and one pair of sides that are not parallel

Question 33

Prism

Answer 33

A solid figure with two parallel faces that are polygons of the same shape

Question 34

Cube

Answer 34

A prism with square sides and faces

Question 35

Pyramid

Answer 35

A solid figure with a base that is a polygon and triangular sides

Question 36

Triangular Prism

Answer 36

A prism with triangular faces

Question 37

Hexagonal Prism

Answer 37

A prism with hexagonal faces

Question 38

Rectangular Prism

Answer 38

A prism with rectangular faces

Question 39

Cylinder

Answer 39

A solid figure with two equal circular bases that are parallel

Question 40

Cone

Answer 40

A solid figure with a circular base connected to a vertex

Question 41

Sphere

Answer 41

A solid figure with a curved surface in which all points on the surface are equal distance from the center