# right angle

(redirected from Ninety-degree angle)
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## right angle

the angle between two radii of a circle that cut off on the circumference an arc equal in length to one quarter of the circumference; an angle of 90? or π/2 radians

[′rīt ′aŋ·gəl]
(mathematics)
An angle of 90°.

## right angle

An angle of 90°.
References in periodicals archive ?
The Ninety-Degree model was designed for a major cosmetics manufacturer that was looking for permanent protection at the ledge that allowed a pallet to be removed from a ninety-degree angle while at the same time permanently blocking off an opening from the opposite direction.
(These protagonists also sometimes deliver posthuman keynote speeches that are awkwardly direct in their allusions to modernity's inscriptions on subjectivity.) The artist's overriding figural interest was clearest in a second video, new skin, 2002, that, projected onto two oval screens bisecting each other at a ninety-degree angle, tells the story of a young Japanese woman going blind.
Actually, some of this must be outside, the greenery indoors fusing visually with the blossom and foliage in the garden; but in the painting's odd space (the spread of flowers is a flat wall, though there's a ninety-degree angle in there somewhere) the two are indistinguishable.
Behind him the Bay of Hong Kong extends as far as the eye can see, but is turned at a ninety-degree angle, its skyscrapers strangely reclining, horizontal.
Since there are few ninety-degree angles in nature, many of our walls and soffits are curved to soften the appearance of corridors and corners.
It has "wings" that are offset and extend at ninety-degree angles from a "huh." The middle area of the house is the "hub" and contains the dining room and meditation room, on the lower and upper floor plan respectively.
The students constructed the frames by using the splines and wood glue to join the corners, then checking the corners with a square to ensure ninety-degree angles. The students then used strips of 1/8 x 1" (.3 x 2.5 cm)pine to create the lip on the inside edge of the frame on which the message would later be placed.
The artist abducts us into an attic-like architecture that is still as white as the eponymous cube but infinitely more eccentric, eschewing ninety-degree angles and bursting with a surfeit of objects, pictures, assemblages, display structures, and supports.
Four of the walls were installed at the center of the exhibition space, at ninety-degree angles, with the videos playing on them simultaneously.

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