In geometry, a secant is a line that intersects a curve at a minimum of two distinct points. The word secant comes from the Latin word secare, meaning to cut. In the case of a circle, a secant intersects the circle at exactly two points.
A chord is the line segment determined by the two points, that is, the interval on the secant whose ends are the two points.
In mathematics, the Pythagorean theorem, or Pythagoras’ theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle.
It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.
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