enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Measurement of a Circle - Wikipedia

   en.wikipedia.org/wiki/Measurement_of_a_Circle

   Proposition one. Proposition one states: The area of any circle is equal to a right-angled triangle in which one of the sides about the right angle is equal to the radius, and the other to the circumference of the circle. Any circle with a circumference c and a radius r is equal in area with a right triangle with the two legs being c and r.

3. Tape measure - Wikipedia

   en.wikipedia.org/wiki/Tape_measure

   Diagram showing fractions of an inch on a standard sixteenth measuring tape. A tape measure or measuring tape is a flexible ruler used to measure length or distance. It consists of a ribbon of cloth, plastic, fibre glass, or metal strip with linear measurement markings. It is a common measuring tool.

4. Circumference - Wikipedia

   en.wikipedia.org/wiki/Circumference

   v. t. e. In geometry, the circumference (from Latin circumferens, meaning "carrying around") is the perimeter of a circle or ellipse. [1] The circumference is the arc length of the circle, as if it were opened up and straightened out to a line segment. [2] More generally, the perimeter is the curve length around any closed figure.

5. Surveyor's wheel - Wikipedia

   en.wikipedia.org/wiki/Surveyor's_wheel

   In the 17th century, the surveyor's wheel was re-introduced and used to measure distances. A single wheel is attached to a handle and the device can be pushed or pulled along by a person walking. Early devices were made of wood and may have had an iron rim to provide strength. The wheels themselves would be made in the same manner as wagon ...

6. Ellipse - Wikipedia

   en.wikipedia.org/wiki/Ellipse

   An ellipse (red) obtained as the intersection of a cone with an inclined plane. Ellipse: notations. Ellipses: examples with increasing eccentricity. In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant.

7. Orders of magnitude (length) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude_(length)

   The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres (⁠ 1 100 ⁠ m = 0.01 m). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.

8. Fuller calculator - Wikipedia

   en.wikipedia.org/wiki/Fuller_calculator

   Fuller calculator, Fuller-Bakewell model of 1928. The Fuller calculator, sometimes called Fuller's cylindrical slide rule, is a cylindrical slide rule with a helical main scale taking 50 turns around the cylinder. This creates an instrument of considerable precision – it is equivalent to a traditional slide rule 25.40 metres (1,000 inches) long.

9. C.a.R. - Wikipedia

   en.wikipedia.org/wiki/C.a.R.

   Website. car.rene-grothmann.de /doc_en /index.html. C.a.R. – Compass and Ruler (also known as Z.u.L., which stands for the German "Zirkel und Lineal") — is a free and open source interactive geometry app that can do geometrical constructions in Euclidean and non-Euclidean geometry. The software is Java based. The author is René Grothmann ...