# Formula of the area of heptagon?

Geometry Level 3

Three regular heptagons with different side lengths form a right triangle, using one side of each. The smallest heptagon has area $$2017 \text{ cm}^2,$$ while the largest one has area $$7102 \text{ cm}^2.$$

Find the area of the remaining heptagon in $$\text{cm}^2.$$

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