Pentagon ABCDE is drawn inside the regular octagon ABFGHIJK . The pentagon has exactly one line of symmetry.
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The formula for the interior angle of a regular polygon with \( n \) sides is: \[ \text{Interior angle} = \frac{(n-2) \times 180}{n} \] For an octagon (\( n = 8 \)): \[ \text{Interior angle} = \frac{(8-2) \times 180}{8} = \frac{6 \times 180}{8} = 135^\circ \] Show more…
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