Comparing Maps

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Find the areas of these two continents:

- North America

- Africa

Use dry erase markers to divide each continent into familiar shapes. Use a ruler to measure the dimensions of the shapes, find their areas, and find the combined area of each continent.

Task

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Compare

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Which continent had a bigger area?

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Since we used different units of measure, we should calculate the ratio of the areas.

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→ Larger Area / Smaller Area

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Calculate

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The actual area of Africa is: 30.22 million km²

Use your ratio to determine the predicted area of North America.

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Results

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The actual area of Africa is: 30.22 million km²

Use your ratio to determine the predicted area of North America.

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The actual area of North America is: 24.71 million km²

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How does that compare to your answer?

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