straight angle

American  

noun

1. the angle formed by two radii of a circle that are drawn to the extremities of an arc equal to one half of the circle; an angle of 180°.

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straight angle British  

noun

1. an angle of 180°

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straight angle Scientific  

/ strāt /

1. An angle having a measure of 180°.

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Etymology

Origin of straight angle

First recorded in 1595–1605

Example Sentences

"I am not attracted to straight angles or to the straight line, hard and inflexible, created by man," he said famously.

From The Guardian

I am not attracted to straight angles or to the straight line, hard and inflexible, created by man.

From The Guardian

Welding Angle Iron.—Let it be required to form a piece of straight angle iron to a right angle.

From Project Gutenberg

Of the two the former has the advantage, since it is probably more obvious that all straight angles are equal.

From Project Gutenberg

“There wasn’t a straight angle in the whole building,” Mr. Easter said.

From New York Times