The answer of your question is C
When depth is added to a 2D shape, it becomes a 3D figure.
A two-dimensional shape is exactly what it sounds like; it's a shape with two dimensions, length and width.
If depth is added to this shape, it gains a third dimension.
A 3D shape is defined as a shape or figure with three dimensions. Since our current figure applies to this definition, we can assume that our figure would become a 3D figure.
<em>Hope this helped! :)</em>
Answer:
Tempo is important in music because it gives the speed of music. Without using the different speeds of tempos like Andante or Moderato our music would be all over the place.
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