Calculate a Land-Cover Percentage - Practice 2

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A land-cover percentage compares the area of a stated cover type with the full mapped area. The categories in these models do not overlap. A map date matters because land cover can change. These are invented land-cover surveys.

Worked example

Forest covering 12 of 40 square km occupies 30% of that mapped area.

A four-by-five grid of equal-area cells has six marked F for forest and fourteen marked with a dash. Forest occupies six of twenty cells, or 30%, in this invented map.

Question 1 Fictional survey 6: forest covers 28 of 140 square km on the same map date. What percent is forest? Answer

Question 2 Fictional survey 7: forest covers 40 of 160 square km on the same map date. What percent is forest? Answer

Question 3 Fictional survey 8: forest covers 54 of 180 square km on the same map date. What percent is forest? Answer

Question 4 Fictional survey 9: forest covers 70 of 200 square km on the same map date. What percent is forest? Answer

Question 5 Fictional survey 10: forest covers 88 of 220 square km on the same map date. What percent is forest? Answer