semicircle
IPA: sɛmisˈɝkʌɫ
noun
- Half of a circle.
- A surveyor's instrument for measuring angles; a graphometer.
- (soccer) An arc whose center is the penalty spot, extending from the top of the penalty area.
verb
- (transitive, intransitive) To travel or move around in a semicircle.
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Examples of "semicircle" in Sentences
- The half of a circle is termed a semicircle; thus, in Figure 52, A B and
- In the centre of the semicircle was a great round hole, 30 ft. in diameter -- an extinct crater.
- According to the theorem, any triangle inscribed in a semicircle is a right triangle, as is shown in the following diagram:
- The vaulting, windows, and doorways had the form of the round arch, that is, a semicircle, as in the ancient Roman monuments.
- Therefore it is the assumption of B, the half of two right angles, from which it follows that A is attributable to C, i.e. that the angle in a semicircle is a right angle.
- We had delicious young chicken -- quite babies they were, poor dears -- fried with cream; and wreathed all round our plates in a semicircle were a quantity of tiny dishes.
- Within the semicircle were a number of Arabs of high and low degree, a few of them well-dressed and armed to the teeth, others dirty and shabby; but all intent on business.
- The first figure is a semicircle, which is perpendicular to the plane of the circle ABDZ and which starts on the diameter AED and, with point A remaining fixed, rotates to position AKD.
- The mind would then only tend to the affirmation of the sole motion of a semicircle, which is not contained in the conception of a semicircle, and does not arise from the conception of any cause capable of producing such motion.
- I have counted wrong; and of those not three are of other material than stone, nor are there as many others that fail to cause expense to your Majesty and labor to the natives -- and this in one legua about the city as I have said, in a semicircle, which is even not entire, for the other half falls within this bay.
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