Algenib and Algol form with γ Andromedæ, a right-angled triangle.
Of the measuring of right lines by like right-angled Triangles.
"Oh, that's all right-angled," said Freddy, taking the hint and rising.
The employment of a right-angled isosceles triangle has also been suggested, but is not in general use.
The little stream at this point makes a right-angled turn, and thus is built up an opposing wall of equal height.
Figure 61 represents a right-angled triangle, A and B forming a right angle.
In a right-angled triangle, of which one of the other angles is 45°, the remaining angle is also 45°.
In place of "right-angled triangle" modern writers speak of "right triangle," and so for the obtuse and acute triangles.
Fold number one back toward the right, making at the fold a right-angled triangle.
It is a right-angled gash pointing straight to the next blaze.