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 ?
pencil's length and thumb and forefinger stretched ninety degrees.
The Arms Park has now been rebuilt and rotated through ninety degrees, and looks like a cruise liner beached in the middle of Cardiff.
The breech plug has an interrupted-thread design that allows easy removal simply by rotating it ninety degrees.
Eriksson was also pleased with the team's fitness levels in heat hovering around the ninety degrees mark and especially with the fact Rooney lasted 90 minutes.
and turn your left toot in 75 degrees and your right foot and leg out ninety degrees.
While some of these problems are minor, turnout is a particular problem in ballet where the ideal is ninety degrees of external rotation in the hips.
The ninety degrees are crowding me as I push my head through the dress neck, and pull the comb through my wild hair that needs three hands to tie it back.
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.