The number of points

MATHEMATICS · Single correct · ISC · Mathematics · Algebra · Coordinate Geometry

Problem

The number of points, having both coordinates are integers, that lie in the interior of the triangle with vertices

(0, 0)

,

(0, 41)

and

(41, 0)

is (1) 820 (2) 780 (3) 901 (4) 861

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