Question

plzzxx plzzz sol.
answer shows 56​

Answer 1

Decagon = 10

then,

Perimeter = 10 × 28/5 = 56 cm

HOPE THIS WILL HELP U

Answer 2

$\huge {\bold {\blue {s0lUtion....}}}$

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Side of a regular decagon =

$5 \times \frac{3}{5} = \frac{28}{5} cm$

Therefore, perimeter of regular decagon =

$= 10a \\ \\ = 10 \times \frac{28}{5} \\ \\ = \frac{280}{5} \\ \\ = 56 cm$

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$\huge {\bold {\blue {Hope this helps}}}$