
Angles are divided into four classes according to their measure. A right angle is an angle that measures 1/4 of a full circle^{[1]}.
Click on the blue point in the manipulative and drag it to change the figure. 
#  A  B  C  D 
E  F  G  H  I 
J  K  L  M  N 
O  P  Q  R  S 
T  U  V  W  Y 
Z  X 
All Math Words Encyclopedia is a service of
Life is a Story Problem LLC.
Copyright © 2018 Life is a Story Problem LLC. All rights reserved.
This work is licensed under a Creative Commons AttributionShareAlike 4.0 International License