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Octagon is equal in area to 8 rectangles, length 9.3, width 7.7/2 ie 3.75. Area of each of these is 35.805 sq cm so total area is 286.44 sq cm.

Alternatively you can mutiply the square of the apothegm by 3.314 (8/tan 67.5) which gives 286.6.

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Q: What is the area of a regular octagon with an apothem of 9.3 cm and a side length of 7.7 cm?
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A regular octagon with sides of length 7 and an apothem of length 8.45 has an area of what?

The area of a regular octagon: A = (2 x apothem)2- (length of side)2 or in this case A= (2 x 8.45)2 - 72


A regular octagon with sides of length 8 and an apothem of length 9.66 has an area of how many square units?

By Apothem LengthThe area of a regular octagon can also be computed using its measured apothem (a line from the center to the middle of any side). The formula for an octagon with side length s and apothem a is Area = a4s . (apothem times one-half the perimeter)So for this example, (8 cm and 9.66 cm) Area = (9.66)(32) = 309.12 cm2----By Side LengthThe area of a regular octagon with side length s is given as Area = 4.828427 s2 , so for a regular octagon of side length 8 cm , the area is calculated as 309.02 cm2. (indicating an error from rounding the apothem length)(This formula is generated by adding or subtracting the missing corner triangles.)


A regular octagon with sides of length 8 and an apothem of length 9.66 has an area of square units?

309.12


A regular octagon with sides of length 7 and an apothem of length 10.49 has an area of square units?

293.72


A regular octagon with sides of length 7 and an apothem of length 8.45 has an area of how many square units?

By Apothem LengthThe area of a regular octagon can also be computed using its measured apothem (a line from the center to the middle of any side). The formula for an octagon with side length s and apothem a is Area = a4s (apothem times one-half the perimeter)So for this example, (7 cm and 8.45 cm) Area = (8.45)(28) = 236.6 cm2----By Side LengthThe area of a regular octagon with side length s is given as Area = 4.828427 s2 , so for a regular octagon of side length 7 cm , the area is also about 236.6 cm2.(This formula is generated by adding or subtracting the missing corner triangles.)

Related questions

A regular octagon with sides of length 7 and an apothem of length 10.49 has an area of?

Area in square units = 0.5*(apothem)*(perimeter)


A regular octagon with sides of length 7 and an apothem of length 8.45 has an area of what?

The area of a regular octagon: A = (2 x apothem)2- (length of side)2 or in this case A= (2 x 8.45)2 - 72


A regular octagon with sides of length 8 and the apothem of length 9.66 has an area of what?

309.12


A regular octagon with sides of length 8 and an apothem of length 9.66 has an area of how many square units?

By Apothem LengthThe area of a regular octagon can also be computed using its measured apothem (a line from the center to the middle of any side). The formula for an octagon with side length s and apothem a is Area = a4s . (apothem times one-half the perimeter)So for this example, (8 cm and 9.66 cm) Area = (9.66)(32) = 309.12 cm2----By Side LengthThe area of a regular octagon with side length s is given as Area = 4.828427 s2 , so for a regular octagon of side length 8 cm , the area is calculated as 309.02 cm2. (indicating an error from rounding the apothem length)(This formula is generated by adding or subtracting the missing corner triangles.)


If a regular octagon's apothem is 14.5cm and the length of the side is 12cm what is the area?

i think its 10


A regular octagon with sides of length 11 and an apothem of length 8.85 has an area of square units?

389.40


A regular octagon with sides of length 7 and an apothem of length 10.49 has an area of square units?

293.72


A regular octagon with sides of length 8 and an apothem of length 9.66 has an area of square units?

309.12


What is the area of a regular octagon with a side length of 5.8 centimeters and an apothem length of 7 centimeters?

An octagon with a side length of 5.8 cm has an apothem that is approximately 7 cm. The area of such a shape is approx 162.4 sq cm.


A regular octagon with sides of length 7 and an apothem of length 8.45 has an area of how many square units?

By Apothem LengthThe area of a regular octagon can also be computed using its measured apothem (a line from the center to the middle of any side). The formula for an octagon with side length s and apothem a is Area = a4s (apothem times one-half the perimeter)So for this example, (7 cm and 8.45 cm) Area = (8.45)(28) = 236.6 cm2----By Side LengthThe area of a regular octagon with side length s is given as Area = 4.828427 s2 , so for a regular octagon of side length 7 cm , the area is also about 236.6 cm2.(This formula is generated by adding or subtracting the missing corner triangles.)


What is the area of a regular octagon with a side length of 5.8 centimeters and a apothem of 7 centimeters?

An octagon with a side length of 5.8 cm has an apothem that is approximately 7 cm. The area of such a shape is approx 162.4 sq cm.


A regular octagon with sides of length 11 and an apothem of length 8.85 has an area of what?

An apothem of a regular polygon is a segment from its center to the midpoint of a side. You can use the apothem to find the area of a regular polygon using this formula: A = pa/2 where p is the perimeter of the figure and a is the apothem. For a regular octagon with side length 11, the perimeter p = 8(11) = 88. So the area would be A = 88(8.85)/2 = 389.4 square units.