Find The Area Of A Regular Octagon With A Side Of 13cm Long.

Find the area of a regular octagon with a side of 13cm long.

 

Answer:

815 cm²

Step-by-step explanation:

A = 2 (1 + √2) s²

A = 2 (1 + √2) 13²

A = 2 (1 + 1.41) 169

A = 2 (2.41) 169

A = 814.58

A = 815 cm²


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