Topic 9 Geometry

Question 1

Quadrilateral

Answer 1

A polygon with four sides

Question 2

Triangle

Answer 2

A polygon with three sides

Question 3

Plane figure/shape

Answer 3

A figure/shape with only two dimensions

Question 4

Line

Answer 4

A straight path of points that goes on forever in two directions

Question 5

Point

Answer 5

An exact location in space

Question 6

Plane

Answer 6

An endless flat surface

Question 7

Acute angle

Answer 7

An angle that is less than 90 degrees

Question 8

Obtuse angle

Answer 8

An angle that is more than 90 degrees

Question 9

Right angle

Answer 9

An angle which measures 90 degrees

Question 10

Parallel lines

Answer 10

In a plane, lines that never intersect

Question 11

Perpendicular lines

Answer 11

Two intersecting lines that form right angles (square corners)

Question 12

Parallelogram

Answer 12

A quadrilateral in which opposite sides are parallel

Question 13

Pentagon

Answer 13

A plane figure with 5 sides

Question 14

Acute triangle

Answer 14

A triangle with three acute angles

Question 15

Angle

Answer 15

A figure formed by two rays that have the same endpoint

Question 16

Equilateral triangle

Answer 16

A triangle in which all sides are the same length

Question 17

Hexagon

Answer 17

A polygon with 6 sides

Question 18

Intersecting lines

Answer 18

Lines that cross at one point

Question 19

Isosceles triangle

Answer 19

A triangle that has at least two equal sides

Question 20

Line segment

Answer 20

A part of a line that has two endpoints

Question 21

Obtuse triangle

Answer 21

A triangle in which there is one obtuse angle

Question 22

Octagon

Answer 22

A polygon with 8 sides

Question 23

Polygon

Answer 23

A closed plane figure/shape made up of line segments

Question 24

Protractor

Answer 24

A tool used to measure and draw angles

Question 25

Ray

Answer 25

Part of a line that has one endpoint and extends forever in only one direction

Question 26

Rectangle

Answer 26

A parallelogram with four right angles

Question 27

Rhombus

Answer 27

A parallelogram with all four sides congruent

Question 28

Right triangle

Answer 28

A triangle with one right angle

Question 29

Scalene triangle

Answer 29

A triangle in which no sides are the same length

Question 30

Side

Answer 30

Each of the line segments of a polygon

Question 31

Square

Answer 31

A quadrilateral with 4 right angles and all sides the same length

Question 32

Straight angle

Answer 32

An angle which measures 180 degrees

Question 33

Trapezoid

Answer 33

A quadrilateral with only one pair of opposite sides parallel

Question 34

Vertex

Answer 34

The point where two rays meet to form an angle; the pointed part of a cone; plural, vertices

Question 35

Vertices

Answer 35

The points where the sides of a polygon meet; the points where 3 or more edges meet in a solid figure; singular, vertex

Question 36

Degree

Answer 36

A unit of measure for angles