We have seen that most of the mathematical terms are a combination of a prefix and a suffix. This section contains some from a Latin derivation.

Find out the Latin derivation( i.e. Give the Latin word and its meaning) of the following prefixes and suffixes:semi-

rect-

multi-

equi-

sec- ( sect- )

tang-

circ-

-angle

-lateral

Draw and clearly label the following geometrical terms; try to give a literal definition (from the Latin) and show how this has been used in the mathematical meaning.rectangle

equilateral triangle

circle

secant

sector

segment

## Circles

What did(use dictionary). Compare this with the French "arcoriginally mean?arc en ciel" (what is this?)

What is a(use dictionary to find out the derivation)chordand why is it an appropriate name?

Draw a diagram to illustrate a circle with anarcandchordclearly shown.

Tangent:What are the literal and Mathematical meanings? Do you know a similar word for a South American dance? (why is it called this?). Draw atangenton your circle diagram.