# Arctangent + analytic geometry - math problems

#### Number of problems found: 6

• Angle between lines Calculate the angle between these two lines: ? ?
• Angle A straight line p given by the equation ?. Calculate the size of angle in degrees between line p and y-axis.
• The angle of lines Calculate the angle of two lines y=x-21 and y=-2x+14
• Tangents to ellipse Find the magnitude of the angle at which the ellipse x2 + 5 y2 = 5 is visible from the point P[5, 1] .
• Coordinates of square vertices I have coordinates of square vertices A / -3; 1/and B/1; 4 /. Find coordinates of vertices C and D, C 'and D'. Thanks Peter.
• Resultant force Calculate mathematically and graphically the resultant of a three forces with a common centre if: F1 = 50 kN α1 = 30° F2 = 40 kN α2 = 45° F3 = 40 kN α3 = 25°

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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. Arctangent - math word problems. Analytic geometry - math word problems.