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Unit Conversions: Decimals to Mixed Numbers
Convert 4.294 feet to feet and inches (to the nearest 16th of an inch)
4 feet + .294 of a foot
4 feet + .294 ft * 12in/ft
4 feet + 3.528 inches
4 feet + 3 inches + .528 of an inch
We look at the decimal .528 and find the boundaries in 16ths of an inch.
8/16 = .500
9/16 = .5625
The decimal is closer to 8/16 so SketchUp will round down to 8/16.
The fraction 8/16 simplifies to ½ of an inch.
ANSWER: 4 feet 3 ½ inches
Convert 6,289 feet to yards and feet.
First convert to yards
6,289 feet * ⅓ yards/foot = 2096.3333 yards
2096 yards + .333... of a yard
[You can keep the repeating decimal in your calculator by subtracting 2096.]
0.333 ... * 3 feet/yard = 1 foot
Answer: 2096 yards and 1 foot
Check: 2096 * 3 + 1 = 6,289
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Cereal Box Surface Area
Note that this activity also incorporates the dimension tool in SketchUp.
cereal box, shown below, was created by Sydney (located in the 3D Warehouse).
Dimensions are l = 10 ¾” w = 4 3/8 ” h = 1’ 2 1/8 inches.
Round answers to the nearest eighth of an inch (I changed the precision from 16ths to 8ths in this model).
What is the area of the base of a hexagonal prism that is inscribed in a circle with a radius of 3 meters?
Check out the
Net Hex Prism
page for the activity.
You may have heard about SketchUp, first developed in 1999 by @Last Software. Google purchased the company in March of 2006 and Version 8 was launched in 2010. The pro version of the program is used by draftsmen, builders, architects, engineers, filmmakers and game developers. Models can be created and imported into Google Earth with a plugin
SketchUp changed ownership in 2012 to Trimble.
SketchUp dot com
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