subtend

The line with letters that subtend 5 minutes of an arc from 20 feet represents the smallest letters that a person with normal acuity should be able to read at that distance.

From Textbooks ● Jun. 19, 2013

We conclude that a double line cannot be fairly resolved unless its components subtend an angle exceeding that subtended by the wave-length of light at a distance equal to the horizontal aperture.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" by Various

For the side of the equilaterall triangle doth subtend 1/3 of the whole pheriphery.

From The Way To Geometry by William Bedwell

How do we discover that, in an isosceles triangle, the sides which subtend the equal angles are equal?

From A Handbook of Ethical Theory by George Stuart Fullerton

This is what is meant by the stars not having, like the planets, a parallax; that is, the earths' orbit, as seen from them, does not subtend a measurable angle.

From An Expository Outline of the "Vestiges of the Natural History of Creation" With a Notice of the Author's "Explanations:" A Sequel to the Vestiges by Anonymous