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Definitions of triangle

a three sided polygon

a percussion instrument consisting of a metal bar bent in the shape of an open triangle

any of various triangular drafting instruments used to draw straight lines at specified angles

something approximating the shape of a triangle; " the coastline of Chile and Argentina and Brazil forms two legs of a triangle"

A figure bounded by three lines, and containing three angles.

An instrument of percussion, usually made of a rod of steel, bent into the form of a triangle, open at one angle, and sounded by being struck with a small metallic rod.

A draughtsman's square in the form of a right angled triangle.

A small constellation situated between Aries and Andromeda.

A small constellation near the South Pole, containing three bright stars.

A kind of frame formed of three poles stuck in the ground and united at the top, to which soldiers were bound when undergoing corporal punishment,  now disused.

A plane figure bounded by three straight lines and having three angles; a musical instrument consisting of a steel rod bent in the form of a triangle, sounded by being struck.

1. A geometrical figure having three straight lines, joined two by two, forming three angles; trigone. 2. In anatomy and surgery, a more or less triangular area bounded by muscles, bony prominences, or other structures, within which are normally found certain important nerves or blood vessels; for these various triangles ( Petit's, Scarpa's, etc.) see the proper names.

( math.) A plane figure with three angles and three sides: ( music) an instrument of steel in the form of a triangle.

A plane figure with three angles and three sides.

A figure bounded by three sides, and having three angles.

A figure bounded by three lines, and containing threo angles; a steel instrument of percussion in music, bent into the form of a triangle; three halberts or poles stuck in the ground and united at the top, to which soldiers are bound when flogged.

A plane figure bounded by three straight lines, having three corners or angles; anything in the form of a triangle.

A three sided structure or area ; various structures.
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Usage examples for triangle

The garden used to be square; but now it is a triangle, as a new boulevard has taken a part of it. – In the Courts of Memory 18581875. by L. de HegermannLindencrone

Thus, having by abstraction already arrived at the notion of triangle, square, and so on, we may fix our attention upon what these have in common, and so rise to the higher abstraction of 'figure. – Deductive Logic by St. George Stock

Doubtless many will fall back upon the position already indicated, " It is as repugnant to the idea of senseless matter, that it should put into itself sense, perception, and knowledge, as it is repugnant to the idea of a triangle, that it should put into itself greater angles than two right ones." – A Candid Examination of Theism by George John Romanes

The acute angle pointed toward the east, and the sides of the triangle were much twisted and broken. – Turned Adrift by Harry Collingwood

And directly in front of it are three other stars in the form of a triangle. – The Chinese Fairy Book by Various

She had a quaint, oval face, and the smooth folds of her dark hair made a triangle of her high forehead. – Stories of the Foothills by Margaret Collier Graham

A shadowy blot on the triangle he knew to be a church. – The Tin Soldier by Temple Bailey

Presently he traced in the sand a triangle and began to speak. – The Garden Of Allah by Robert Hichens

The fort was in the form of a triangle with a half moon at each corner, intended to mount four or five guns. – Captain John Smith by Charles Dudley Warner Last Updated: February 22, 2009

" We've established this triangle of strong points," he said. – The Great Potlatch Riots by Allen Kim Lang

It shows in the centre, therefore, a triangular depression, with the base of the triangle directed backwards. – Diseases of the Horse's Foot by Harry Caulton Reeks

Only you have to stand in that triangle close to the wall, near the corner. – The Created Legend by Feodor Sologub

There I perceived that it ended in a sharp angle; for I had already noticed that this little chamber was not of a square shape, as we say, but of the form of a triangle, with its apex pointing downwards. – The Boy Tar by Mayne Reid

Whether or not the master of the steamer received the information volunteered by Flower, the two girls saw the triangle of lamps get narrow at its base, reduce themselves to two in a vertical line, then to one, then to darkness. – The Hand of Ethelberta by Thomas Hardy

When the Reverend Mr. Mullen inadvertently introduced an emotional triangle, he had changed the situation from one of mere sentimental dalliance into direct pursuit. – The Miller Of Old Church by Ellen Glasgow

So also, on the third side of our triangle, man stood over against nature. – Edward Caldwell Moore Outline of the History of Christian Thought Since Kant by Edward Moore

When we have accepted as the definition of a triangle that it is 'a figure contained by three sides, ' the statement of the further fact that it has three angles becomes a real proposition. – Deductive Logic by St. George Stock