Question

Write all formulas related to dodecagon?​

Answer 1

Step-by-step explanation:

Sum of interior angles = (n-2) x 180°

Sum of interior angles = 10 x 180° = 1800°

1800°/12 = 150°

Perimeter = 12 x s

Length of one side: 17 mm

Perimeter: 12 x 17 mm = 204 mm

A = 3 × (s)^2 × (2 + √3)

A = 3 × (s)^2 × (2 + √3)

A = 3 × (6.278 mm)^2 × (2 + √3)

A = 118.239852 mm^2 x 3.73205080757

A = 441.277135143 mm^2

A = 4.41277 cm^2

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