**Lila made a triangular flag to cheer on her favorite sports team. The perimeter of the flag is 20 inches.**

## A triangular flag is shown. 2 sides have lengths of 8 inches. The total perimeter of the flag is 20 inches.

Heron’s formula: Area = StartRoot s (s minus a) (s minus b) (s minus c) EndRoot

Approximately how many square inches of fabric were used to make the triangular flag?

15 square inches

76 square inches

186 square inches

215 square inches

Mathematics

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