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They used to use the Acbes to  help them counting numbers

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Archimedes also used levers and pulleys to move heavy objects.

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Archimedes discovered the physical law of displacement. The law of displacement is when an object moves the same volume of water as the object which is placed in it.

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Euclid was

Born;

Mid-4th century BCE

Died

Mid-3rd century BCE

Residence

Alexandria, Hellenistic Egypt

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Pythagorean means

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Pythagoras also came up with the value of pie to calculate the circumference of a circle.

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greeks invented different types of maths

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they say that the legend of the 6th centery bce mathmetacian Pythagoras of samos has become synonymous with the birth of Greek mathematics. Indeed,

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Euclid often called Euclid of Alexandria was a mathematician often known as the father of geomtry

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The Greeks produced great advancements in mathematics which are still used today

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Pythagoras was famous for his theorem A² +B² = C² for a right triangle.

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Euclid was known for the basic rules and terms of geometry.

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Archimedes had a lot of achievements including deriving an accurate approximant of pi.

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The Greeks produced great advancements in mathematics which are still used today.

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About a hundred years later, Pythagoras proved that the Pythagorean was always true .Greeks developed from the 7th century BC to the 4th century AD.

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a lot of math discoveries were in Egypt, Mesopotamia, India and china.

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Archimedes calculated the value of pi. The Ancient Greeks invented all maths.