chichi222 chichi222

11-07-2020
Mathematics

contestada

Find the area of a regular octagon with
a side length of 12 cm. Round to the
nearest tenth.
12 cm
[ ? ] cm2

Respuesta :

bekkarmahdi702 bekkarmahdi702

11-07-2020

Answer:

A= 695.3cm²

Step-by-step explanation:

We khow that the area of anctagon is : A= 2(1+[tex]\sqrt{2}[/tex])*a² with a the side
so A= 2(1+√2)*a² = 695.29= 695.3 cm²

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regis80 regis80

12-07-2020

I believe the answe is A

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