A RIGHT-ANGLED TRIANGLE is that which has a Right Angle.
DEFINITION XXVII.
From The Commentaries of Proclus on the First Book of Euclid's Elements by Proclus.
From The Commentaries of Proclus on the First Book of Euclid's Elements by Proclus.
A RIGHT-ANGLED TRIANGLE is that which has a Right Angle.