Crossword-Solution: SUBTENDED 9 letters, 1 clue 🏆 scrabble score: 13

The arc subtended in the sky by the moon is a fifteenth part of a sign" of the zodiac; that is to say, since there are twenty-four, signs in the zodiac, one-fifteenth of one twenty-fourth, or in modern terminology, one degree of arc.

This is demonstrated by the relation of the distances, by the position (of the moon) in relation to the earth's shadow, and by the fact that the arc subtended by the moon is a fifteenth part of a sign." Aristarchus follows with nineteen propositions intended to elucidate his hypotheses and to demonstrate his various contentions.

One circle may be so small that the actual arc subtended by the radii in a given case may be but an inch in length, while another circle is so large that its corresponding are is measured in millions of miles; but in each case the same number of so-called degrees will represent the relation of each arc to its circumference.

The form and appearance of the land are the same as we have seen everywhere since leaving Bomani--a low plateau subtended by a bank cut down by the Kingani river, and nothing more.

Geometry will simplify the operation considerably; with its help the altitude of the highest mountains are ascertained; we may, therefore, easily find the height of that branch.' So saying, I measured out a certain distance from the base of the tree and marked the spot, and then by means of a rod, whose length I knew, and imaginary lines, I calculated the angle subtended by the trunk of the tree from the ground to the root of the branch.