Area of a regular pentagon with a known side S can be closely approximated by formula 5S2/4 tan 36. Taking 4 tan 36 as 2.906 then the area sought is 2000/2.906
ie 688.23 sq units.
The area of a pentagon of side length t is given by the formula t2 (sqrt 25 + 10 (sqrt 5)) / 4, or 5t2 tan (54o) / 4. In this case, a pentagon with one side of 10cm has an area of 102 (sqrt 25 + 10 (sqrt 5)) / 4 = 172.05 cm2 (accurate to two decimal places).
27.50
Pentagon means five sides. If one side is 4cm, then the perimeter which is the total length of all the sides is 4cm multiplied by 5 equals to 20 cm.
If the pentagon is 'regular', we can ignore the digestive implications and focus onthe geometric ones, namely, that each of its five sides has the same length. Sinceone of them is 13 feet long, they all are, and the perimeter is 13 x 5 = 65 feet.
5 sides and it is a regular pentagon
The area of a pentagon of side length t is given by the formula t2 (sqrt 25 + 10 (sqrt 5)) / 4, or 5t2 tan (54o) / 4. In this case, a pentagon with one side of 10cm has an area of 102 (sqrt 25 + 10 (sqrt 5)) / 4 = 172.05 cm2 (accurate to two decimal places).
20
The perimeter of a pentagon is the sum of its sides. If it is a regular pentagon, just multiply the length of a side by 5.The perimeter of a pentagon is the sum of its sides. If it is a regular pentagon, just multiply the length of a side by 5.The perimeter of a pentagon is the sum of its sides. If it is a regular pentagon, just multiply the length of a side by 5.The perimeter of a pentagon is the sum of its sides. If it is a regular pentagon, just multiply the length of a side by 5.
A regular pentagon has 5 equal length sides. So 17/5 = 3.4 cm per side.
25 cm
5 x the length of one side. * * * * * That would be true if the pentagon were regular. However, there is nothing in the question to indicate that it is a regular pentagon and so nothing to justify that assumption.
25
Multiply the known length by 5, because the sides are all the same length on a regular pentagon and a pentagon has 5 sides.
it has six three on one side three on the other* * * * * No it does not.An ordinary pentagon has none. It can have 1 or, if it is a regular pentagon, 5.
41 mm
The formula for the perimeter of ANY regular pentagon isPerimeter = 5 x (length of one side)
20/5 = 4 units.