it do make a blunt corner.

[Illustration: D]

Also some triangles haue all righte lynes and they be distincted
in sonder by their angles, or corners. for other their corners
bee all sharpe, as you see in the figure, E. other ij. sharpe
and one blunt, as is the figure G. other ij. sharp and one blunt
as in the figure H.

[Illustration: E]

[Illustration: F]

There is also an other distinction of the names of triangles,
according to their sides, whiche other be all equal as in the
figure E, and that the Greekes doo call _Isopleuron_, [Sidenote:
#isopleurom#.] and Latine men _aeequilaterum_: and in english it
may be called a _threlike triangle_, other els two sydes bee
equall and the thyrd vnequall, which the Greekes call
_Isosceles_, [Sidenote: #isoskeles#.] the Latine men _aequicurio_,
and in english _tweyleke_ may they be called, as in G, H, and K.
For, they may be of iij. kinds that is to say, with one square
angle, as is G, or with a blunte corner as H, or with all in
sharpe korners, as you see in K.

[Illustration: G]

[Illustration: H]

[Illustration: K]

Further more it may be y^t they haue neuer a one syde equall
to an other, and they be in iij kyndes also distinct lyke the
twilekes, as you maye perceaue by these examples .M. N, and O.
where M. hath a right angle, N, a blunte angle, and O, all
sharpe angles [Sidenote: #skalenom#.] these the Greekes and
latine men do cal _scalena_ and in englishe theye may be
called _nouelekes_, for thei haue no side equall, or like long,
to ani other in the same figur. Here it is to be noted, that in
a triangle al the angles bee called _innerangles_ except ani side
bee drawenne forth in lengthe, for then is that fourthe corner
caled an _vtter corner_, as in this example because A.B, is
drawen in length, therfore the angle C, is called an vtter angle.

[Illustration: M]

[Illustration: N]

[Illustration: O]

[Illustration]

[Illustration: Q]

[Sidenote: Quadrangle] And thus haue I done with trianguled
figures, and nowe foloweth _quadrangles_, which are figures of
iiij. corners and of iiij. lines also, of whiche there be diuers
kindes, but chiefely v. that is to say, [Sidenote: A square
quadrate.] a _square quadrate_, whose sides bee all equall, and
al the angles square, as you se here in this figure Q.
[Sidenote: A longe square.] The second kind is called a long
square, whose foure corners be all square, but the sides are not
equall