right-angled

right·-angled (rīt′aŋ′gəld)

adjective

having or forming one or more right angles; rectangular

Modifies a noun

triangle: The triangle was a right-angled triangle with the longest runway being aligned with the main direction of wind for the area.
bend: Alas for us, after a few right-angled bends, the stream sank into the floor, as did the roof.
corner: A square wave is a voltage or a current change in which the waveform has square, i.e. right-angled, corners.
turn: Here the lane just stops and cyclists are invited to make a right-angled turn onto a path off to the left.

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