Circle : Every   point   on   a   circle   is   equidistance   from   some fixed   point,   which   is   the   center.   A   circle   is   divided into   360   degrees.   Only   one   circle   can   pass   through three points not in a straight line. Chord: A   length   of   line   or   segment   connecting   two   points   on   a circle. Diameter: Length   of   line   (chord)   passing   through   the   center   of   a circle Radius: A   line   Segment   connecting   the   center   of   a   circle   to any   point   on   the   circle.   The   dimension   is   half   that   of a diameter. Tangent: A   line   which   has   only   one   point   touching   the   circle.   A tangent is always perpendicular to the radius. Arc: Is part of a circle. Pi: The   ratio   of   the   diameter   of   a   circle   to   its   cir- cumference. The symbol for Pi is .    Pi=(3.141592654) Circumference: The   distance   around   a   circle   (the   perimeter).   The   cir- cumference = diameter x Area:  x Radius 2
Please Donate if you find this site helpful. Thank-You!
No part of this publication may be reproduced, or transmitted, or stored, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of, Sixth Edition Reformatted for Internet, ©2012