The photograph at the right shows the Crown Fountain in Chicago, Illinois. At this fountain, images...

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The photograph at the right shows the Crown Fountain in Chicago, Illinois. At this fountain, images of faces appear on a large screen. The images are created by light-emitting diodes (LEDs) that are clustered in groups called modules. The LED modules are arranged in a rectangular grid.

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image

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a. The rectangular grid is approximately 7 meters wide and 15.2 meters high. Find the area of the grid. 

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b. Suppose an LED module is a square with a side length of 4 centimeters. How many rows and how many columns of LED modules would be needed to make the Crown Fountain screen? Explain your reasoning.

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Related Book For  answer-question

Holt McDougal Larson Geometry

ISBN: 9780547315171

1st Edition

Authors: Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff

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