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The answer is: True.

The magnitude of a vector is represented by the length of the arrow.

The arrow length is drawn according a chosen scale.

For example, the diagram shows a vector with a magnitude of 100 kilometers, if the scale used for constructing the diagram is 1 cm = 10 km, the vector arrow is drawn with a length of 10 cm.

The arrow has an obvious tail and arrowhead. The arrow points in the precise direction.

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Answer:

True

Explanation:

Scalar quantities have only magnitude whereas vector quantities have both magnitude and direction. Speed is a scalar quality whereas velocity is a vector quantity as velocity has both a magnitude and direction. Vectors are represented by a line with an arrow head. The magnitude of the vector is represented by the length of the line and the arrow head points to the direction of the vector.

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