# a polygon with n number of sides will have how many digonals a)n b)n(n-3) c)n/2 d) n-3/2 e)n(n-3)/2

42,038 questions-
## maths: plzz help

(a) A polygon with n sides has a total of 1/p*n(n-q) diagonals, where p and q are integers. (i) find thhe value of p and q (ii) find the total number of diagonals in a polygon with 100 sides (iii) find the number of sides of a polygon which has a total of

*asked by preeti on March 16, 2012* -
## math.

Each exterior angle of a regular polygon is 15 degrees. 1.Determine the number of sides of the polygon. 2.What is the sum of the interior angles? please help!!!!!!!! i'd love to help but i can't remember how to do those problems. sorry. The sum of all the

*asked by Shay on February 25, 2007* -
## Geometry

The sum of the interior angles of polygon is 1800. Find the number of sides in the polygon and, what do you call that polygon?

*asked by Anal-G on January 20, 2011* -
## math

The apothem of a regular polygon is the distance from the center to any side. If the length of the apothem remains constant at 10 inches, the formula for the perimeter of a regular polygon as a function of the number of sides is ( ) ( )( ). As the regular

*asked by Anonymous on May 15, 2015* -
## Maths urgent

One regular polygon has twice as many sides as another. If the ratio of the interior angles of the first to that of second is 5:4, find the number of sides in each polygon?

*asked by Rabinprakash Dahal on September 13, 2015* -
## math

the sides of a polygon have lengths of 2cm,5cm,6cm,4cm,9cm and the perimeter of a smaller polygon is 78cm Find the length of the sides of the larger polygon

*asked by the game on January 25, 2012* -
## math--fast help please

Find the interior and exterior angle measurements of a polygon with this many sides: x=2y help? I don't want the answer, I just would like to know how to do this one. I don't see why a number of sides is being specified as an equation. The SUM of the

*asked by Emily on March 29, 2007* -
## Math

two sides of a polygon are parallel line segments.what number of sides the polygon could have

*asked by flameclaw on April 4, 2016* -
## College Geometry

In this assignment, you examine a process that links polygons and circles. You will reach some quantitative conclusions about their respective areas and the relationship between the two. As you know, a regular polygon has sides of equal length and angles

*asked by Lisa on September 3, 2013* -
## Math

The number of diagonals D I a polygon of n sides is given in the formula D=n(n-3)/2. Use the formula to find: A. The number of diagonals in a polygon with 9 sides. B. The number of sides of a polygon with 90 diafonals.

*asked by Raven on November 23, 2016* -
## Math

Are the statements Always, Sometimes or Never. Please explain why. Thanks. 1. An equilateral polygon is regular. 2. The greater the number of sides of a regular polygon, the smaller the measure of any of its exterior angle. 3. The sum of the measures of

*asked by Brianna on October 14, 2014* -
## math

Is each biconditional statement true or false? Select True or False for each statement. True False A polygon is a square if and only if the polygon has exactly four sides. A polygon has exactly five sides if and only if the polygon is a pentagon. A polygon

*asked by Tariq Abdo on January 28, 2019* -
## geometry

The measure of an exterior angle of a regular polygon is given. Find the number of sides of the polygon? Given number is 72?

*asked by Dylan on March 3, 2014* -
## Identifying patterns

If the pattern of polygons continues, how many sides will polygon 98 have? and there is a picture of polygon 1 which is a 3-sided triangle polygon 2- which is is a sqaure polygon 3- which is a 5 sided pentagon. polygon 4- which is a six sided hexagon

*asked by Chelsea on May 11, 2011* -
## Math Geometry

Polygon ABCD is similar to polygon WXYZ, and and are corresponding sides. You know the perimeter of each polygon, and you know the measure of BC. What can you find? A. Measure of all sides of both polygons B. Measure of

*asked by Seth on June 21, 2016* -
## math

one of the interior angles of a regular polygon is 144degrees find the number of sides of the polygon

*asked by Nita on April 5, 2016* -
## math

Each interior angle of a regular polygon is 140 degree. the number of sides of the polygon is?

*asked by rajkishor ray on September 18, 2014* -
## Geometry

If each exterior angle of a regular polygon measures 40 degrees, what is the total number of sides in the polygon? a.) 9 b.) 8 c.) 6 d.) 5

*asked by Taylor on December 27, 2011* -
## Maths

The sum of interior angles of an irregular polygon is 5040 .find the number of sides of the polygon

*asked by Langton on September 27, 2017* -
## math

A regular polygon has the sum of the interior angles as 3240degrees . find the number of sides the polygon has.

*asked by Nita on April 5, 2016* -
## goemetry

can the following formula to find the sum of the interior angles of a polygon be used on a concave polygon? 180(n-2) where n= the number of sides

*asked by mike on February 24, 2010* -
## geometry

If a polygon is a kite, which statement is not true? a. The polygon is a quadrilateral. b. The polygon has exactly two distinct pairs of adjacent congruent sides. c. The diagonals of the polygon are congruent. d. The diagonals of the polygon are

*asked by roddy on January 3, 2011* -
## Geometry

In a regular polygon (equal sides and angles), you use (n-2)180 to find out what the interior angle sum is (n=number of sides in polygon) and you divide by that number by whatever n is to find out the measure of an individual angle, right? Well, there is

*asked by Emily on September 27, 2007* -
## math

The number of diagonals, d, in a polygon of n sides is given by the formula d=n^2-3n/2. If a polygon has 90 diagonals, how many sides has it? a. 8 b. 10 c. 12 d. 15 e. 20 please answer and explain

*asked by thomas on April 27, 2014* -
## Geometry

If the sum of the measures of the interior angles of a n-sided polygon is 1,0800, then set up a mathematical model to find the number of sides of the polygon.

*asked by Summer. on June 3, 2015* -
## Math

Tell whether the pair of polygons is similar. Explain why or why not. The polygon A is bigger. The side of the polygon is 10ft and the top sides of the polygon is 11ft. The polygon B is smaller. The side of the polygon is 8.4ft and the top side of the

*asked by Enna on November 9, 2018* -
## math

A regular polygon is inscribed in a circle of radius 9 cm. Calculate the perimeter of the polygon to the nearest tenth if the polygon has 6 sides.

*asked by Anonymous on November 6, 2016* -
## math

A regular polygon is inscribed in a circle of radius 11 cm. Calculate the perimeter of the polygon to the nearest tenth if the polygon has 8 sides.

*asked by Anonymous on November 6, 2016* -
## math

Is each biconditional statement true or false? Select True or False for each statement. A polygon is a square if and only if the polygon has exactly four sides. true or false A polygon has exactly five sides if and only if the polygon is a pentagon. true

*asked by Jaaide on September 26, 2017* -
## math

the sides of a polygon are 3,4,5,6 and 7cm. Find the perimeter of a similar polygon, if the sides corresponding to 5cm is 9cm long.

*asked by roldan on August 6, 2016* -
## gr9math

how many sides does a polygon have if the sum of its interior angles are a) 1080 b) 1260 How could i figure this out without being able to know how many sides the polygon has?

*asked by Rebecca on May 23, 2010* -
## math

A side of regular polygon is 3.5 cm in length.the perimeter of the polygon is 17.5 cm. How many sides does the polygon have?

*asked by nimshi on September 30, 2012* -
## Geometry

the number of sides in 2 regular polygons is in the ratio 5:4 an the difference between their angles is 9^o. Find the number of sides in the polygon

*asked by HELP!!! URGENT on December 2, 2011* -
## Geometry

the number of sides in 2 regular polygons is in the ratio 5:4 an the difference between their angles is 9^o. Find the number of sides in the polygon

*asked by HELP!!! URGENT on December 2, 2011* -
## Math

The interior angle of a regular polygon is 200 more than 3 times the exterior angle. Find the number of sides of the polygon.

*asked by Nikki on April 23, 2019* -
## math

The size of an interior angle of a regular polygon is 3x° while its exterior angle is (x- 20)°. Find the number of sides of the polygon

*asked by kudu on February 17, 2015* -
## maths

each interior angle of a regular polygon is 18 degree more than eight times an exterior angle. the number os sides of polygon is.

*asked by polygon on March 28, 2012* -
## geometry

if a polygon has 53 sides, what will the total number of degrees (i,e. the total number of interior angles) in this polygon

*asked by zyan on February 1, 2011* -
## geometry

if a polygon has 53 sides, what will the total number of degrees (i.e. the total sum of interior angles) in this polygon

*asked by zyan on February 1, 2011* -
## trig

the angle in one regular polygon is to that in another as 3:2 and the number of the sides in first is twice that in second determine the the number of sides of 2 polygons

*asked by seema on June 19, 2011* -
## Algebra

1. Solve the equation below for x interms of a 4(ax+3)-3ax=25+3a 2. The formula for the sum of the degree measures of the interior angles of a polygon is S=180(n-2). Solve for n, the number of sides of the polygon, in terms of S. IM STRUGGLING PLEASE HELP

*asked by Kianna on December 20, 2016* -
## geometry

If the ratio of the interior angle to the exterior angle is 5:1 for a regular polygon, find a. the size of each exterior angle b. the number of sides of the polygon c. the sum of the interior angles d. Name the polygon

*asked by jodi on April 24, 2012* -
## math

find the sum of the measures of the intieior angles of each polygon. -hexagon -pentagon -quadrilateral -octagon -16-gon -27-gon The key is the sum of the measures. All of these figures have the same total number of degrees in their interior angles. What do

*asked by kristen on March 12, 2007* -
## Math

The ratio of z sides of two similar polygon is 3:2 the area of the smaller polygon is 24cm square what is the area of larger polygon

*asked by Hermella on December 16, 2015* -
## math

The measure of an interior angle of a regular polygon is 135 degrees. Find the number of sides in the polygon. This is what I tried: 180(x-2)=135 [Interior Angle Sum Theorem] x-2=.75 x=2.75 That can't be right though. Help? Not sure about your formula.

*asked by Emily on March 27, 2007* -
## Math

two regular polygons of the same number of sides have sides 5 ft. and 12 ft. in length, respectively. what is the length of the side of another regular polygon of the same number of sides, if its area is equal to the sum of the other two.

*asked by collins on October 19, 2013* -
## physics/math

Does the formula Sum of internal angles of a polygon = (n - 2)x180 degrees, where n represents number of sides, work for polygons of interacting sides?

*asked by sandhya on August 24, 2010* -
## Maths

Two polygons have te number of their sides in the ratio 1:3.The sums of their interior angles are in the ratio of 4;1. Find the number of sides of each polygon.

*asked by Erin on February 7, 2011* -
## math214

A student asks whether a polygon whose sides are congruent is necessarily a regular polygon and whether a polygon with all angles congruent is necessarily a regular polygon. How do you answer?

*asked by alicia on February 16, 2010* -
## please help!!!!! someone

Each exterior angle of a regular polygon is 15 degrees. 1.Determine the number of sides of the polygon. 2.What is the sum of the interior angles? if the exterior angle is 15, then the interor angle is 165. 165n=(n-2)180 solve for n. I need help to study

*asked by Shay on February 25, 2007* -
## MATH

I know a polygon has many sides am I correct to say that a concave polygon has two sides.

*asked by COLLEEN on June 22, 2011* -
## Geometry

1. How many sides does a regular polygon have if one exterior angle is 90 degrees? 3 4 5 6 2. The measures of three angles of a quadrilateral are 80, 90, and 103 degrees. Find the measure of the fourth angle. 67 77 87 97 3. The sum of the interior angles

*asked by Justin on November 30, 2010* -
## geometry

The sides of a polygon are 3, 5, 4, and 6. The shortest side of a similar polygon is 9. Find the ratio of their perimeters.

*asked by iziah on May 2, 2019* -
## gomitry

A polygon is such that when all diagonals from one vertex are drawn, eleven triangles are formed. How many sides does the polygon have?

*asked by Luke Jones on August 23, 2017* -
## geometry

The sum of the measures of the interior angles in a polygon is 540 degrees. How many sides does the polygon have?

*asked by Carl on December 13, 2010* -
## math

Each side of a polygon is 0.29cm in length And its perimeter is 1.74cm. How many sides does the polygon has?

*asked by tejashree on August 23, 2016* -
## Maths

Each side of a regular polygon is 4.05 cm in length. How many sides does the polygon have if its perimeter is 0.486m ?

*asked by Anonymous on October 19, 2017* -
## math

If a convex quadrilateral polygon has two rectangle and each angle is120° then what is the no of sides of polygon?

*asked by jyotiprakash on August 28, 2016* -
## maths

The diagram shows part of a regular polygon. work out how many sides the polygon has. (it is 156 degrees).

*asked by corinna on October 29, 2007* -
## Math_ Geometry

The sum of the interior angles of a regular polygon equals 1260 degrees. How many sides does a polygon have?

*asked by Sarah on July 27, 2017* -
## Maths

Each side of a regular polygon is 4.05 cm in length. How many sides does the polygon have if its perimeter is 0.486m ? Exaplain how 4.05n=486

*asked by Anonymous on October 20, 2017* -
## math

each exterior angle of a regular polygon is 12 degrees. how many sides does the polygon have?

*asked by shar on January 17, 2012* -
## geometry

If the measure of an exterior angle of a regular polygon is 24, how many sides does the polygon have?

*asked by BaileyBubble on December 12, 2012* -
## geometry

if each angle in a regular polygon is 157.5 degrees, how many sides does the polygon have?

*asked by Anonymous on September 23, 2009* -
## geometry

The number of lines of symmetry of any regular polygon is equal to the number of sides. Is that correct?

*asked by kina on May 17, 2013* -
## Math

1. The measure of an interior angle of a regular polygon is 20 more than thrice the measure of its adjacent exterior angle. Find the number of sides of the polygon and its total number of diagonals. 2. Find the sum and difference between the sum of the

*asked by Brianna on October 14, 2014* -
## Math

If two of the line segments of a polygon are parallel, what is the least number of sides it could have?

*asked by Nelson on November 8, 2011* -
## math

if 2 of the line segments of a polygon are parallel, what is the least number of sides it could be?

*asked by Elina on April 2, 2014* -
## geometry

find the number of diagonals in a 14 sides polygon can you help me wiht this?

*asked by marko on April 2, 2012* -
## geometry

tell if the figure is a star polygon, a polygon, or other, and how many sides it has. {9/3}

*asked by jeng on October 24, 2009* -
## Math

1a. Draw a circle of 15mm b. Construct 2diameters at angles to each other c. Construct two more 2diameters bisecting the angles between those drown d. Join the ends of the 2diameters to form a regular polygon. What sort of polygon is it? e. Measure the

*asked by Simon on June 7, 2019* -
## math

A sum is invested at compound interest payable annually. The interest in two successive years was Rs 900 and Rs 981. Find the sum. If the sum of all internal angles and sum of all external angles of a regular polygon are equal, then the number of sides of

*asked by adam on November 20, 2015* -
## Math

Each exterior angle of a regular polygon is 15 degrees. How many sides does the polygon have? and What is the sum of the interior angles? Since this is not my area of expertise, I searched Google under the key words "polygon angles" to get these possible

*asked by Shay on April 4, 2007* -
## PLZ HELP Math!

1. Estimate the measure of the angle. Graphic 90° 85° 102° 78° 2. Which figure is NOT a polygon? Graphic Graphic Graphic Graphic 3. Which pair of angles are vertical? Graphic ∠b and ∠c ∠b and ∠e ∠b and ∠d ∠b and ∠f 4. Which statement is

*asked by name:unknown on February 14, 2019* -
## Math

Find the number of the sides of a regular polygon, if the measure of one of its exterior angle is between 28 and 32.

*asked by Erin on October 3, 2014* -
## GOVT JUNIOR COLEGE MATHS

FIND THA NUMBER OF SIDES OF A REGULAR POLYGON IF EACH EXTERIOR ANGLE MEASURES. 30'

*asked by NIZAM on September 21, 2016* -
## Geometry

How do I find the number of sides a regular polygon has if I only know te measure of the exterior angle, such as 40 degrees?

*asked by Erick on January 13, 2008* -
## Math

Calculate the number of sides of a regular polygon whose interior angles are each 156 degrees.

*asked by AJ on December 4, 2011* -
## Geometry

What geometric figure does a regular polygon begin to resemble as the number of sides increases?

*asked by Anonymous on March 16, 2012* -
## Algebra II

1. Find the value of 5 + 8 x 2 divided by 4 - 11 2. Evaluate (a-y)^2 + 2y^3, if a =2 and y= -3 3. Evaluate -|a-3b|, if a=-2 and b = 6 4. The formula A= 180 (n-20 OVER N relates the measure A of an interior angle of a regular polygon to the number of sides.

*asked by PJ. on May 4, 2008* -
## math

The sum of interior angels and the sum of exterior angles of polygon are in the ratio 9:2.find the sides of regular polygon.

*asked by rohit on December 18, 2015* -
## algebra

the sides of a polygon are 8, 9, 29, 24, and 14 centimeters long. findd the length of the longest side similar polygon whose shortest side is 2.

*asked by dont trust on February 26, 2014* -
## math

Is this a star polygon, a polygon, or other, how many sides does it have? {9/3}

*asked by Zach on September 20, 2010* -
## Geometry

Please Help Me! Find the area of this polygon rround to the nearest tenth. The polygon is a hexagon with six sides, and all they give is the apothem which is 6 inches long, what is the area? I know the formula is A=1/2ap But can anyone help!

*asked by Geomtery on February 21, 2012* -
## Cycle geometry

An interior angle of a regular convex polygon is 162(degrees). Find the number of sides.

*asked by Christopher on June 29, 2015* -
## geometry

What is the relationship between the number of vertices of a regular polygon and the number of summetry lines of the polygon?

*asked by Astrid on December 7, 2009* -
## Math please helppp

1 Find the missing angle measure in the polygon A ] 77 B ] 87 C ] 97 D ] 107 i think its b 2 Find the sum of the interior angles in 10 - sided polygon A ] 1,260 B ] 1,440 c ] 1,620 d ] 1,800 i think its c or b 3 Find the measure of each interior angle in a

*asked by melissa on December 4, 2015* -
## 8th grade math

The total number of interior angles in two regular polygons is 17, and the total number of diagonals is 53. How many sides does each polygon have? Show work and explain.

*asked by Anonymous on December 18, 2011* -
## geometry

A polygon has d diagonals. If the polygon had one more side, it would d + 10 diagonals. How many sides does the polygon have?

*asked by melissa on April 13, 2011* -
## Math

Let d(n) represent the number of diagonals of a polygon of n sides. Here is a table of values of d(n). n 3 4 5 6 7 8 9 10 11 d(n)0 2 5 9 14 20 27 35 44 Find a polynomial formula for d(n) in terms of n

*asked by Heather on February 21, 2016* -
## Geometry

What geometric figure does a regular polygon begin to resemble as the number of sides increases? How come the answer is a circle?

*asked by Anonymous on March 17, 2012* -
## geometry

Suppose the perimeter of a polygon is 27 inches. If the sides of the polygon are scaled by a factor of 1/3, what is the new perimeter?

*asked by sharon on January 26, 2010* -
## Math

how do I find the number of degrees in the point angle of a {5/2} star polygon? Since it is a polygon and a polygon has to equal 360 degrees...would I divide 360 by 5? Please help

*asked by Punkie on December 10, 2009* -
## Math

how do I find the number of degrees in the point angle of a {5/2} star polygon? Since it is a polygon and a polygon has to equal 360 degrees...would I divide 360 by 5? Please help

*asked by Punkie on December 9, 2009* -
## Math

The measure of each interior angle of a regular polygon with n sides is [(n - 2)180 / n] degrees. What is the measure of each interior angle of a regular polygon with n sides, in radians? A. (n - 2)pi / 4n B. (n - 2)pi / 2n C. (n - 2)pi / n D. (n - 2)2pi /

*asked by Anonymous on May 3, 2015* -
## Math

An n-sided polygon has interior angles of which 4 of them are of sizes 125,220,40 and 295 degrees . The remaining interior angles are of sizes 20 degrees each. Find the value of n, My working: let the number of sides for the polygon be n and the remaining

*asked by Nurul on December 5, 2014* -
## Maths

The sum of the interior angles o a regular polygon is 30 right angles. How many sides have the polygon?

*asked by James on July 7, 2016* -
## Math--Area

Find the area of each regular polygon to the nearest tenth. Octagon with side length of 10 kilometers. Heres what I tried; but I don't know if im on the right track. Area=1/2 * Perimeter* Apothem Perimeter=base of octagon* number of sides Perimeter=10*8=80

*asked by natalie on April 4, 2007* -
## geometry

a star, is it a polygon? if it is name it by the num,ber of sides... 10 sides i beilieve?

*asked by ceilia on December 15, 2007* -
## Geometry

If a polygon has 33 sides what is a) The sum of the measures of the angles of the polygon? b) The sum of the measures of the exterior angles, one per vertex, of the polygon?

*asked by Zelda on February 21, 2010*

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