Geometry Terms

Question 1

Decagon

Answer 1

Shape with 10 sides

Question 2

N-gon

Answer 2

Allows to be general about number of n angles,verticals, or sides

Question 3

Polygon

Answer 3

A closed planar figure made up of line segments joined end to end

Question 4

Line segment

Answer 4

Piece if a straight line between two endpoints

Question 5

Polygonal region

Answer 5

The points inside a polygon

Question 6

Diagnol

Answer 6

A line segment joining two verticles if the polygon that are not joined by a side

Question 7

Equiangular polygon

Answer 7

A polygon whos angles all have the same side

Question 8

Equilateral polygon

Answer 8

A polygon whose sides all have the same length.

Question 9

Regular polygons

Answer 9

Polygons also can be equiangular and equilateral, if they are both the are regular

Question 10

Acute triangle

Answer 10

Each angle measures less than 90 degrees

Question 11

Right traingle

Answer 11

One angle is 90 degrees

Question 12

Obtuse traingle

Answer 12

One angle is more than 90 degrees

Question 13

Scalene traingle

Answer 13

All sides are different lengths

Question 14

Isosceles triangle

Answer 14

A triangle with 2 sides the same shape

Question 15

Equilateral traingle

Answer 15

All three sides are the same length

Question 16

Right angle

Answer 16

90 degrees

Question 17

Obtuse angle

Answer 17

Greater than 90 degrees

Question 18

Acute angle

Answer 18

Less than 80 degrees

Question 19

Straight angle

Answer 19

180 degree angle

Question 20

Protractor

Answer 20

Device used to measure angles

Question 21

Adjacent angles

Answer 21

Angles with the same vertex and a common side between them

Question 22

Supplementary angles

Answer 22

2 angles who sizes add up to 180

Question 23

Complementary angles

Answer 23

Angles who add up to 90 degrees

Question 24

Exterior angle

Answer 24

A polygon formed by the extension of one side of the polygon through a vertex of the polygon

Question 25

Interior angle

Answer 25

Angle inside labled by side letters

Question 26

Conjectures

Answer 26

Educated guesses

Question 27

Inductive reasoning

Answer 27

Basing a conclusion soley on one or more examples

Question 28

Counter example

Answer 28

An example that shows that the conjecture is not true in general