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hipparchus
He defined the spherical triangle
There is no Contribution of Thales in the field of trignometry.........
An important contribution by Menelaus of Alexandria was his works on geodesics.
Centuries ago, Islam created the mathematics of 'Trigonometry'.
Ptolemy created the earliest tables of trigonometry functions that were found. His mathematical methods have been used to solve problems in astronomy.
nothing
hipparchus
He defined the spherical triangle
He introduced coordinated geometry
There is no Contribution of Thales in the field of trignometry.........
spherical and plane trigonometry? :p
Aristolte and Ptolemy sorry if i did not spell it right
An important contribution by Menelaus of Alexandria was his works on geodesics.
Centuries ago, Islam created the mathematics of 'Trigonometry'.
The main contribution for which Ptolemy is famous is his discovery that the earth revolved around the sun. This was known as the heliocentric theory (and it competed with Catholic Church teaching of the time, which held that the earth was the center of the solar system or geocentric).
Thales, Democritus, Pythagoras, Aristotle, Archimedes, Euclid, Erastosthenes, Hipparchus,