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Michael solves the problem 53.04 x 4.6 to get the product of 2,439.84. (53.04 x 4.6 = 2,439.84) Yareli says that his answer is incorrect.

Explain Michael's error.

(Be sure to use academic language and complete sentences.

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13y ago

In mathematics, a plane is any flat, two-dimensional surface.

A planar surface means that the surface of a material is straight in two dimensions, an example would be a perfectly flat smooth piece of glass. If an etch or chip is on the glass surface, or if the glass is heated and curves, then it is no longer a planar surface.

Semiconductor fabrication requires the wafer to be a planar surface.

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Q: What is a planar surface?
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