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The answer is ERASTOSTHENES.

Q: Who calculated the circumstances of the earth using his knowledge in geometry?

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Erasthothenes

It comes from geo (Earth) and metron (measure). So in a technical sense, it means to measure Earth or land.

Geometry comes from a Greek word meaning 'earth measurement'

The word geometry simply means land or earth measurements.

It means land or earth measurement.

Related questions

Erasthothenes

For one thing, they calculated (very accurately, too) the circumference of the Earth. They already knew that the Earth was a globe.

because of the three knowledge that pulls the gravity of the earth.

The purpose of Euclidean Geometry is to understand plane (2-D) and solid (3-D) geometry with the understanding that things are "flat". Around 300BC Euclid organized the current knowledge of geometry in a series called the "13 elements" . Euclid was a famous Greek mathematician. The Greeks considered geometry to be its pride and joy. They were the first to ask important questions beginning with "How and Why". Their main goals were to spread their knowledge of Geometry and answer the question relating to the purpose of Geometry. The answer, the purpose of Geometry is to understand the purpose or existence of life (mankind) itself. Geometry is not just about shapes and things that have been created by mankind. Geometry is in nature and even exists in the things we cannot see. "Geo" means Earth and "metry" comes from the word meaning measurement. So, rightfully so geometry mean the measurement of earth. I will leave you with a famous pun- Without geometry, life is pointless. ---

Geometry means earth or land measurements

The ancient Europeans (or more accurately, the ancient Greeks) produced the "Father of Geometry", Eratosthenes of Cyrene, born in 276 BC. He used his knowledge and discoveries in Geometry to accurately calculate the circumference of the Earth. A little later, he also accurately calculated the 'tilt' of our planet. He also correctly calculated - at a time when no-one had ever travelled there - that the poles of the earth must be very cold and that from there to the Equator the climate would gradually change from moderate to tropical. He also drew the first surprisingly correct map of the Mediterranean countries and the Middle East. He got his map so precise because he also invented the system of paralleles and meridians in geometry. This made it possible to make exact calculations of the location of any landmark on the planet and the distances between them. He also calculated that the correct duration of one year was 365 days and the necessity of leap years every 4 years.

The answer is in the word -- Geo means 'Earth', and 'metry' means 'measure'. Geometry means to measure the earth. Ancient Egyptians used a form of simple geometry. When buildings or crops needed to be plotted out, geometry was used.

It comes from geo (Earth) and metron (measure). So in a technical sense, it means to measure Earth or land.

Geometry comes from a Greek word meaning 'earth measurement'

The word geometry simply means land or earth measurements.

Geometry

Well geometry is derived from the Greek words: "geo" meaning earth and "metry" meaning measuring. So geometry means earth measuring. Measuring has to do with stuff like lines, angles, circles, triangles, polygons, and solids. Earth has to do with stuff that can be measured in it.