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8 July, 17:05

Converting is a key skill when working with maps and scales. Tracking units and showing any conversion factors is an important part of doing this well. (Total 5 marks) 4) Complete the following and show your work. a) Convert 2.5 km into cm. (1 mark) b) Convert 500 ft into cm using 1 inch 2.54 centimeters; and 12 inches - 1 foot. (2 marks)

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  1. 8 July, 17:08
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    2.5 km = 250000 cm

    500 ft = 15240 cm

    Explanation:

    part a

    given data

    length = 2.5 km

    to find out

    Convert into cm

    solution

    we know that 1 m = 100 cm ... 1

    and also we know 1 km = 1000 m ... 2

    sop as that we can say from equation 1 and 2

    1 km = 100000 cm

    so for 2.5 km = 2.5 * 100000 cm

    2.5 km = 250000 cm

    and

    part b

    given data

    length = 500 ft

    to find out

    Convert ft into cm

    solution

    we know here that

    1 ft = 12 inches ... 1

    and also we know 1 inch = 2.54 cm ... 2

    so we can say

    500 ft = 12 * 500 inches

    500 ft = 6000 inches

    and 500 ft = 6000 * 2.54 cm

    500 ft = 15240 cm
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