Question

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Model 2: Definitions of the inch and the foot 1 inch 2.54 cm (exactly) 23 5 6 7 8 9 10 1 12 13 14 15 10 There are exactly 12 inches in one foot. Critical Thinking Questions: How many centimeters are in one inch? 54m 9. Draw a large X through each incorrect conversion factor below. 1 cm2.54 cm 2.54 in 2.54 in 1 cm 10. Suppose you want to convert a height from inches into centimeters. Circle the 1 in 2.54 cm 1 in conversion factor in CTQ 9 that you would use. Explain your choice Model 3: The unit plan A unit plan begins with the unit of the known or measured quantity and shows how the units will change after multiplying by each conversion factor used, in order. The unit plan for CTQ 10 would be: in-, cm Each arrow in the unit plan represents one conversion factor. Critical Thinking Questions: 11. A basketball player is seven feet tall. Using Models 2 and 3 for reference, complete the unit plan for converting the height of the basketball player into centimeters. a. feet → cm - b. Write one conversion factor corresponding to each arrow in part (a). Include all units. Perform the calculation by multiplying the measured quantity by each conversion factor in order. Show all work with units. c. CA04

Answer 1

Model 2

8) from the scale its clear that

1 inch = 2.54 cm

1 cm / 2.54 inch X (incorrect) cross it

2.54 cm / 1 inch correct

2.54 inch / 1 cm X (incorrect) cross it

1 inch / 2.54 cm correct

10) if you want to convert inches to cm

you should use

2.54 cm / 1 inch Conversion Answer

a inch * 2.54 cm / 1 inch = a cm