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(5a)

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Step 1:

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Consider the dimensions of the door is \"\" inches.

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Width of the door is 22 inches and height of the door is 96 inches.

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Convert the dimensions into centimetres.

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Convert width of the door in centimetre.

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\"\"

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\"\"

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\"\"

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Round to the nearest tenth.

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\"\"

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Width of the door in centimetre is 55.9 cm.

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Step 2:

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Convert height of the door in centimetre.

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\"\"

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\"\"

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\"\"

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Round to the nearest tenth.

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\"\"

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Height of the door in centimetre is 243.8 cm.

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The dimensions of the door is \"\" cm.

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Solution:

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The dimensions of the door is \"\" cm.

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(5b)

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Step 1:

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The dimensions of the door is \"\" cm.

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Width of the door is 55.9 cm and height of the door is 243.8 cm.

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Convert the dimensions into metres.

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Convert width of the door in metres.

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\"\"

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\"\"

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\"\"

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Width of the door in metre is 0.559 m.

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Step 2:

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Convert height of the door in metre.

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\"\"

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\"\"

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\"\"

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Height of the door in metre is 2.438 m.

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The dimensions of the door is \"\" m.

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Solution:

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The dimensions of the door is \"\" m.

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