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单词 acute-angled triangle
例句 acute-angled triangle
Further, of trilateral figures, a right-angled triangle is that which has a right angle, an obtuse-angled triangle that which has an obtuse angle, and an acute-angled triangle that which has its three angles acute. The Teaching of Geometry 2011-10-12T02:00:52.133Z
Their first and second squadrons formed the sides of an acute-angled triangle; the third squadron formed the base of the triangle, towing the transports, and the fourth squadron brought up the rear, covering the transports. A History of Sea Power
An acute-angled triangle has all its angles acute, as in Figure 63. Mechanical Drawing Self-Taught
He might have said that an acute-angled triangle is one which has neither a right angle nor an obtuse angle: but rightly preferred to throw the same statement into a positive form. Deductive Logic
The life of the spirit may be fairly represented in diagram as a large acute-angled triangle divided horizontally into unequal parts with the narrowest segment uppermost. Concerning the Spiritual in Art
The hook, merely a hollow and acute-angled triangle of sheet-copper floating on a piece of board at the end of the line, held the bird by pinching its curved beak into the acute angle.  The Mutiny of the Elsinore
Here the sea made a decided indentation on the coast; it ran up in an acute-angled triangle till its apex coincided with the very spot upon which Madrid had stood. Off on a Comet! a Journey through Planetary Space
Thus Euclid defines an acute-angled triangle as one which has three acute angles. Deductive Logic
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