Glossary of Terms

A

angle - two rays with the same endpoint

angle measure - how 'open' an angle is in its interior, commonly measured in degrees

B

There are currently no terms for this letter.

C

complement (of an angle) - the measure of an angle that results in a sum of 90° when added to the original angle; commonly found by subtracting the measure of the original angle from 90°

complementary angles - two angles whose measures add to be 90°

D

degree - common unit of measure for angles, denoted by the ° symbol; there are 360 degrees in a circle

E

endpoint - a point where a ray (or another 'type' of line) terminates and ceases to continue in the direction of the endpoint

F

There are currently no terms for this letter.

G

There are currently no terms for this letter.

H

There are currently no terms for this letter.

I

There are currently no terms for this letter.

J

There are currently no terms for this letter.

K

There are currently no terms for this letter.

L

There are currently no terms for this letter.

M

measure of an angle - see 'angle measure'

N

There are currently no terms for this letter.

O

There are currently no terms for this letter.

P

There are currently no terms for this letter.

Q

There are currently no terms for this letter.

R

ray - a 'portion' of a line that 'stems' from a point and extends infinitely in one direction

S

There are currently no terms for this letter.

T

There are currently no terms for this letter.

U

There are currently no terms for this letter.

V

There are currently no terms for this letter.

W

There are currently no terms for this letter.

X

There are currently no terms for this letter.

Y

There are currently no terms for this letter.

Z

There are currently no terms for this letter.