# Perpendicular projection

Determine the distance of a point B[1, -3] from the perpendicular projection of a point A[3, -2] on a straight line 2 x + y + 1 = 0.

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For Basic calculations in analytic geometry is a helpful line slope calculator. From coordinates of two points in the plane it calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of segment, intersections the coordinate axes etc.

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Our vector sum calculator can add two vectors given by its magnitudes and by included angle.

Do you want to convert length units?

Pythagorean theorem is the base for the right triangle calculator.

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