Engineering Drawing
In some circumstances an entire drawing can be inserted into a different drawing as a block. When this is used the base point will default to _________.

20, 20
10, 10
30, 30
0, 0

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Engineering Drawing
Three dimensional models are often used in the design process to ________.

Provide the client with a model which they can use to impress their friends
Determine the quantity of brick needed to build the house
Help the client select a color for their carpet
Help the client understand the overall design concept

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