# Vector sum

The magnitude of the vector

**u**is 12 and the magnitude of the vector**v**is 8. Angle between vectors is 61°. What is the magnitude of the vector**u + v**?### Correct answer:

Tips to related online calculators

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.

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

Cosine rule uses trigonometric SAS triangle calculator.

See also our trigonometric triangle calculator.

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

Cosine rule uses trigonometric SAS triangle calculator.

See also our trigonometric triangle calculator.

#### You need to know the following knowledge to solve this word math problem:

We encourage you to watch this tutorial video on this math problem: video1

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