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Regular polygons the ratio of the sids of regular polygon is 4:5 and the ratio of the angles of that poligon is 15:16 find the number of sides......?

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  • Anonymous Apr 01, 2014

    don't know answer


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Not the question of this site.

Posted on Aug 16, 2008

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Related Questions:

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What is the number of diagonals of a regular polygon whose interior angle measures 144 degrees?

180(n-2)=n*144 in our case
solving for n we obtain:
36n = 360
n=10 sides

Dec 01, 2015 | Miscellaneous

1 Answer

Names of all polygons

Since there are an infinite number of polygons, I can't list all of their names. For the names of all polygons with up to 100 sides, see

Jun 05, 2014 | Computers & Internet

1 Answer

If the ratio of the corresponding side lengths of two similar polygons is 5:9, what is the ratio of their perimeters?

This works for any polygon:

Say you have 2 squares - the sides are 5 and 9
Perimeter 1 = 20
Perimeter 2 = 36

20:36 = 5:9

Apr 10, 2014 | Texas Instruments TI-83 Plus Calculator

1 Answer

Sslc maths

What follows is true for CONVEX polygons.
Let n be the number of sides of a convex polygon, and let n be greater than or equal to 4, then
The number of diagonals is given by n*(n-3)/2
Using this rule, write n*(n-3)/2=20. Clear the fraction, open brackets. You end up with n^2-3n-40=0.
Factor the polynomial or use the formulas for the quadratic equation to find the roots as n=-5 or n=8. Discard the negative root because n must be positive.

Oct 05, 2013 | Computers & Internet

1 Answer

What is a polygon with 15 diagonals

For convex polygons there is a relation linking the number of sides to the number of diagonals. Here it is, with n=number of sides
number of diagonals=n*(n-3)/2. Obviously the number of sides must be greater or equal to 3.
If you use the relation for a hexagon (n=6) the number of diagonals is 9. With n=7, the number of diagonals is 14, and for n=8 the number of diagonals is 8*(8-3)/2=20. The answer is that there does not exist a CONVEX polygon with 15 diagonals.
You can also try to solve the quadratic equation n(n-3)/2=15 for a positive integer. And you will not find a solution.
For polygons that are not convex there may be many solutions or no solutions. I leave that to you as an exercise.

Mar 11, 2013 | SoftMath Algebrator - Algebra Homework...

1 Answer

How do convex polygons differ from non-convex polygons?

A convex polygon is one with each of its interior angles less than 180 degrees and every line segment between any of its two vertices remains inside or on the boundary of the polygon.

150px-pentagon.svg.pngExample of a convex polygon (WIKIPEDIA)

A concave polygon will always possess an interior angle with a measure that is greater than 180 degrees.

150px-simple_polygon.svg.pngExample of a concave polygon (WIKIPEDIA)

Aug 11, 2011 | Computers & Internet

2 Answers


SC-320 Polygon mirror motor error:
Symptom: Did not detect lock signal from
polygon mirror motor within 10
seconds after motor ON signal;
or, lost lock signal for
continuous 1.5 seconds after
signal was detected.
1.Polygon mirror motor (or harness)
2.FCU defective

P.S. Remove LSU. Turn out poligon mirror.
Clean & lubricate.

Jun 19, 2009 | Ricoh Aficio 150 Copier

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