Subtend in A Sentence

1

Each of the twenty triangular faces subtend at the centre the same angle as is subtended by four whole and six half faces of the Platonic icosahedron; in other words, the solid is determined by the twenty planes which can be drawn through the vertices of the three faces contiguous to any face of a Platonic icosahedron.

2

Note that the relative poses of the vehicles in Figure 5 are stable even tho the vehicles subtend only a few pixels.

3

The cones, about the size of a small walnut, bear spirally arranged imbricated scales which subtend the three-angled winged seeds.

4

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.