Diameter: meaning, definitions and examples

Etymology

• The word comes from the Greek 'diametros', meaning 'measure across'.
• It entered the English language in the late 15th century, showcasing the blend of scientific and everyday language.

Science

• In geometry, the diameter is twice the radius, which is the distance from the center to the edge.
• It's an essential concept in calculating the area of circles; you can find the area using the formula A = π(d/2)².

History

• Early civilizations, including the Greeks, studied circles and their properties, paving the way for modern geometry.
• Archimedes, a Greek mathematician, was one of the first to explore the relationship between the diameter of a circle and its circumference.

Mathematics

• In coordinate geometry, the diameter of a circle can be determined using the distance formula between two endpoints on the circle.
• The diameter is a fundamental concept in trigonometry, often used to define concepts like radians and degrees.

Art

• The diameter has influenced artistic designs, particularly in creating symmetrical pieces in architecture and visual arts.
• Artists have used circles and their diameters to create balance and harmony in paintings and sculptures throughout history.

This word ranks #1,709, placing it within important intermediate vocabulary. Learning it will significantly improve your ability to express yourself in English.

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