SOLUTION: In teaching, most teachers use a laptop and project their documents from the laptop screen onto a white flat surface. The scale factor of the projected image from the screen to the
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Question 1191888: In teaching, most teachers use a laptop and project their documents from the laptop screen onto a white flat surface. The scale factor of the projected image from the screen to the white flat surface is 1:7. If the screen of the laptop is 7.5 in by 12 in.
What is the dimension of the projected image onto the flat surface? Answer by ikleyn(52803) (Show Source):
