Write the rule for the perimeter of a regular septagon
whose side is of length m cm. Also, use the rule to
find the perimeter of a septagon with side 12 cm. -
(HINT; A septagon has 7 sides)
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3
Answer:
What is the formula for the area and perimeter of a septagon ?
The area (A) of a seven sided septagon can be found from any of the following relations which are applicable to all regular convex polygons:
A = (1/2) n s a,
A = (1/2) p a,
A = (1/4) n s^2 cot (pi/n),
A = n a^2 tan (pi/n),
A = (1/2) n R^2 sin (2 pi/n), where
n = number of sides ,
s = side of the septagon,
p = perimeter of the septagon,
a = apothem or the altitude of the isosceles triangle, there will be n isosceles triangles in n-sided polygon,
R = circumradius of the polygon,
pi = (22/7).
Answered by
1
Answer:
Step-by-step explanation:
Given polygon is a septagon
the Length of the side is m cm
Perimeter of a septagon
=7×length of the side
=>P=7m units
The length of the side =12 cm
Perimeter of the regular septagon=7×12=84cm
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