if the base length of octagon is 30 cm then find the area of the shaded part

Shaded part is octagon which is within the rectangle

please help me how i draw its pic there is no option of graphics

if the base length of octagon is 30 cm then find the area of the shaded part

Shaded part is octagon which is within the rectangle

please help me how i draw its pic there is no option of graphics

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## Comments

I am having some trouble following your question, as you said graphics would make this much easier.

1) You have a Regular Octagon with base side 30cm, all sides are equal?

2) There is a rectangle in the middle of the Octagon, no sides touching the Octagon?

4) Area shaded is actually area

NOTwithin the rectangle, otherwise this would simply be solve for the area of the rectangle.