ng of lines doth happen, the
place of their metyng is called an _Angle or corner_.

Of angles there be three generall kindes: a sharpe angle, a
square angle, and a blunte angle. [Sidenote: A righte angle.]
_The square angle_, whiche is commonly named _a right corner_,
is made of twoo lynes meetyng together in fourme of a squire,
whiche two lines, if they be drawen forth in length, will crosse
one an other: as in the examples folowyng you maie see.

[Sidenote: A sharpe corner.] _A sharpe angle_ is so called,
because it is lesser than is a square angle, and the lines that
make it, do not open so wide in their departynge as in a square
corner, and if thei be drawen crosse, all fower corners will not
be equall.

[Sidenote: A blunte angle.] _A blunt or brode corner_, is
greater then is a square angle, and his lines do parte more in
sonder then in a right angle, of whiche all take these examples.

[Illustration: Right angles.]

[Illustration: Sharpe angles.]

[Illustration: Blunte or brode angles.]

And these angles (as you see) are made partly of streght lynes,
partly of croken lines, and partly of both together. Howbeit in
right angles I haue put none example of croked lines, because it
would muche trouble a lerner to iudge them: for their true
iudgment doth appertaine to arte perspectiue, and as I may say,
rather to reason then to sense.

But now as of many prickes there is made one line, so _of
diuerse lines are there made sundry formes, figures, and
shapes_, whiche all yet be called by one propre name, [Sidenote:
A platte forme.] _Platte formes_, and thei haue bothe _length
and bredth, but yet no depenesse_.

And _the boundes_ of euerie platte forme are lines: as by the
examples you maie perceiue.

Of platte formes some be plain, and some be croked, and some
parly plaine, and partlie croked.

[Sidenote: A plaine platte.] _A plaine platte_ is that, whiche
is made al equall in height, so that the middle partes nother
bulke vp, nother shrink down more then the bothe endes.

[Sidenote: A crooked platte.] For whan the one parte is higher
then the other, then is it named a _Croked platte_.

And if it be partlie plaine, and partlie crooked, then is it
called a _Myxte platte_, of all whiche, these are exaumples.

[Illustration: A plaine platte.]

[Illustration: A croked platte.]

[Illustration: A myxte platte.]

And as of many prickes is made a line, and of diuerse lines one
platte forme, [Si