maths please help

posted by .

how do you find the isoperimetric quotient of an n sided figure?

my side lengths are 5cm
i have split it in to triangles so
is the central angle
then to work out area of singular triangle its 1/2 base times height
height is something like
tan 180/n =2.5 /height length

please help i get stuck here

The sum of the interior angles is (180)(n-2). So each angle in your triangle is half that, divided by n

angle= 90/n * (n-2)

height= 2.5 tan (90/n (n-2))

Put in n, and you have height.
area for the polygon then is n*area of each triangle, where the area of each triangle is 1/2 bh= 1/2 *5*habove.

I need help to answer this question. (n-2)*180=90

  • maths please help -

    If a triangle has a height of 12 in. and a base of 5 in., what is its area?

    A. 60 sq. in.
    B. 45 sq. in.
    C. 30 sq. in.
    D. 90 sq. in.

  • maths please help -

    A trapezoid has an area of 33.6 square centimeters and a height of 4 centimeters. What is the sum of the base lengths of the trapezoid?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    The shorter diagonal of a rhombus is 10 inches long, and the angle the diagonal forms with the side measures 60º. Find the area of the rhombus. I really don't know where to start. I know that the area formula for a rhombus is A=1/2*d1*d2 …
  2. math help

    An engineer is required to survey a nonrectangluar plot of land but is unable to measure side UT directly. The followng data are taken; RU=130 meters, RS=12m ST=90m, angle RST=115, and angle RUT=100. Calculate the length of side UT …
  3. Geometry

    x ________________<20* |<90* y | |<70* (hypotenuse length is 12 units) I'm learning about trig ratios, and my dad was trying to compare it to a circle or something?
  4. Geometry

    We're learning about classifying triangles with Side-Angle-Side, Angle-Side-Angle, etc. I'm kind of confused-- I have the definitions, but when I am shown a picture, I have trouble figuring out which it is. Could you please explain …
  5. geomerty

    The following triangles, Ä ABC and Ä DEF, are congruent. abc 67.38degree 12cm lenght 22.62degree b5cm,l,13cm Find the lengths of all missing sides and measures of all angles for both triangles. Include correct units with each of …
  6. >_<

    The 3 sided triangle has an area of 14 in^2. Determine the lengths of the sides of the triangles.Remember that the area of a triangle is ½ bh. bottom length= x+3 side length= x
  7. maths many non congruent right triangles with positive integer leg lengths have areas that are numerically equal to 3 times their perimeters?
  8. Math

    Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure …
  9. geometry

    i need to figure out side lengths of congruent right isosceles triangle with no lengths given. I know that the hypotenese is 1 per pythogoras constant and the area is a^2/2. I don't have to prove area just side lengths.
  10. Math

    The figure below shows two triangles. Which statement about the triangles is true?

More Similar Questions