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# 7: Dimensional Analysis

• • Contributed by Pamini Thangarajah
• Associate Professor (Mathematics & Computing) at Mount Royal University

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We all have faced a situation when need to be able to change from one unit of measurement to another unit of measurement. In this section, we discuss a method of converting units called dimensional analysis.

Small pizza is 8" and large Pizza is 16". Are we getting the same amount of pizza if we order two small pizzas instead of one large one?

### Time

1 day = 24 hours,

1 hour = 60 minutes, and
1 minute = 60 seconds.

### Length

#### Imperial measurement

1 inch

1 foot= 12 inches

1 yard= 3 feet=36 inches

1 mile =5289 feet

#### Metric

millimeter (mm)

centimeter (cm), 1 cm = 10 mm

meter (m) , 1m= 100 cm= 1000 mm

kilometer (km). 1 km= 1000 m