# Square

Points A[9,9] and B[-4,1] are adjacent vertices of the square ABCD. Calculate the area of the square ABCD.

### Correct answer:

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Line slope calculator is helpful for basic calculations in analytic geometry. The coordinates of two points in the plane calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of the segment, intersections of the coordinate axes, etc.

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

Pythagorean theorem is the base for the right triangle calculator.

See also our trigonometric triangle calculator.

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