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If you mean the area of a regular octagon with 8 equal sides of 3 cm then by using trigonometry its area works out as 43.36 square cm rounded to two decimal places.
Wiki User
∙ 6y ago
Wiki User
∙ 6y agoThe area will depend on whether or not is it as regular octagon. there is nothing in the question to suggest that it is regular.
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What comes next after triangle square pentagon and hexagon?
Geometric figures in a plane can be 3-sided (triangle), 4-sided (square, rectangle, or, in general, quadrilateral), 5-sided (pentagon), 6-sided (hexagon), 7-sided (heptagon or septagon), 8-sided (octagon) and on and on in the polygons.
What is the area of 3 cm 3 cm 7 cm 2 cm?
126
What are the 1-10 polygons?
11
What shape has 8 side?
The flat shape (2-D) is an octagon. An eight-sided solid is an octahedron.
What is the formula for finding the numbers of diameters of an octagon?
Formula for number of diagonals in an n-sided polygon is: number_of_diagonals = n x (n - 3) / 2 For an octagon, put n=8 in the above to get: number_of_diagonals_in_an_octagon = 8 x (8 - 3) / 2
How many diagonal lines can you make in a octagon?
There are 20 diagonals in an 8 sided octagon
What is a 29 sided shape?
In geometry a 29 sided shape is referred to as an icosikaidigon. The shape closely resembles an 3 dimensional octagon.
What is the name for the 8 sided shape?
An octagon is an 8 sided 2 dimensional shape. A cylinder with the base of a hexagon (6 sided shape) would be an 8 sided 3 dimensional shape.
The total length of the sides of a regular octagon is 24 inches?
An octagon is an eight-sided figure. If a regular octagon has a perimeter of 24 inches, then each side will be 24 / 8 = 3 inches.
Given a triangle square and hexagon what is next?
We have the triangle (3-sided), square (or quadrilateral, 4-sided), pentagon (5-sided), hexagon (6-sided), heptagon (or septagon, 7-sided), octagon (8-sided), nonagon (9-sided) and decagon (10-sided) to get you started.
What is the area of a 3 cm circle?
The area of a 3 cm circle is: 7.069 square cm
What comes next after triangle square pentagon and hexagon?
Geometric figures in a plane can be 3-sided (triangle), 4-sided (square, rectangle, or, in general, quadrilateral), 5-sided (pentagon), 6-sided (hexagon), 7-sided (heptagon or septagon), 8-sided (octagon) and on and on in the polygons.
What is the area of a circle with the radius of 3 cm?
A circle with a radius of 3 cm has an area of 28.27 square cm.
What is the area of 3 cm 3 cm 7 cm 2 cm?
126
What are the 1-10 polygons?
11
What is the surface area of a cube that measures 3 cm by 3 cm?
18 cm
What shape has 8 side?
The flat shape (2-D) is an octagon. An eight-sided solid is an octahedron.
