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We will be happy to post videos as per your requirements also. Do write to us.Geometry (Ancient Greek: geo- "earth", -metria "measurement") is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space. It is one of the oldest mathematical sciences. Initially a body of practical knowledge concerning lengths, areas, and volumes, in the 3rd century BC, Geo-metry was put into an axiomatic form by Euclid, whose treatment—Euclidean geo-metry—set a standard for many centuries to follow. Archimedes developed ingenious techniques for calculating areas and volumes, in many ways anticipating modern integral calculus. The field of astronomy, especially mapping the positions of the stars and planets on the celestial sphere and describing the relationship between movements of celestial bodies, served as an important source of geometric problems during the next one and a half millennia. A mathematician who works in this field is called a geo-meter.
|1) ∠||Angle||formed by two rays||∠ABC = 60o|
|2) ⊾||Right angle||90o||α = 90o|
|3) ≅||Congruent to||Equivalence of geometric shapes and size||ΔABC ≅ ΔPQR|
|4) ⊥||Perpendicular||Perpendicular lines (90o angle)||PQ ⊥ PR|
|5) Δ||Triangle||Triangle shape||ΔABC = ΔXYZ|
|6) →||Ray||Line that start from point.|
|7) o||Degree.||1trun = 360o||α = 60o|
|8) π||pi constant||π= 3.141592654...is the ratio between the circumference and diameter of a circle.||d = 2 πr|
|9) ∥||Parallel||Parallel lines||AB ∥ PQ|
|10) ∢||Spherical angle||∢ ABC = 30o|
Russia-Ukraine crisis update - 3rd Mar 2022
The UN General assembly voted at an emergency session to demand an immediate halt to Moscow's attack on Ukraine and withdrawal of Russian troops.