right 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

right angle

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

right angle

An angle of 90°.
References in periodicals archive ?
The poor fella's ears stuck out at ninety degrees and burned as we made clowns of ourselves for the cameras.
Ninety Degrees In The Shade, made in 1964, won her the International Critics' Prize at the Berlin Film Festival and she clinched a Golden Globe Award for best actress in 1967 after starring in The Fox.
One of the main technical advances in the instrument is the use of an electrostatic "ion mirror" to bend the ion beam ninety degrees, eliminating neutrals and photons from the beam while still preserving a narrowly collimated ion beam.
Turn this logo ninety degrees clockwise and you may notice a typographical wink.
In addition, the screen image can be rotated ninety degrees in either direction, allowing applications and content to be viewed vertically or horizontally.
The students were told to rotate the brush layers ninety degrees.
A failed compressor or fan motor can result in the temperature quickly skyrocketing to eighty or ninety degrees and cause adjacent air conditioning units to overwork and fail.
A wood laminate structural member supported between supports located at its opposite ends to span an open area for bearing an applied load corresponding to shearing stresses that act within a horizontal shear plane substantially perpendicular to the applied load, comprising: plural elongate wood segments, each having a major surface for bearing the applied load between the supports and secured together in a stack with their lengths generally aligned with the longitudinal axis of the wood structural member wherein the plural wood segments located centrally of the wood structural member have two or more annual growth rings per inch that intersect the major surface at an angle of between thirty and ninety degrees to provide increased resistance to horizontal shear stresses.
Unfortunately the partnership failed to hit the target as the Jack Berry- trained Ninety Degrees had to settle for fifth in the Claude Harrison Memorial Nursery.
It was a great day," recalls Berry, who also trains Ninety Degrees - beaten a neck at Chester yesterday.
Introduced in late 1944, it consisted of a barrel extension with a curve of ninety degrees fitted to a Sturmgewehr 44 and sighted by a periscope using mirrors fitted to the stock.
Building upon the work of manuscript scholars Amy Charles and Janis Lull, Di Cesare discusses "Easter-Wings" in detail, showing how Buck turned, without manuscript authority, the poems ninety degrees to appear vertically.