Questions on Geometry: Polygons answered by real tutors!

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Question 851297: All of the angles in a regular octagon are congruent. what is the measure of each angel, in degrees
Click here to see answer by ewatrrr(24785)

Question 851637: The perimeter of a regular pentagon measures 10x-25.Find the length of one side
Click here to see answer by josh_jordan(263)

Question 851717: Find the number of sides of a polygon if the sum of the measures of its interior angles is twice the sum of measures of its exterior angle.
Click here to see answer by Alan3354(69443)

Question 852279: how many sides does a polygon with an exterior angle of nine degrees have

Click here to see answer by Alan3354(69443)

Question 852691: A 5-sided polygon has interior angles as ∠a,∠2a,∠3a,∠4a, and ∠5a. If the smallest exterior angle is 30,find the second smallest interior angle.

Click here to see answer by Edwin McCravy(20054)

Question 852847: If a polygon has eight congruent sides is it a octagon
Click here to see answer by Seutip(231)

Question 853032: the sum of the exterior angles of a regular polygon is twice the measure of the sum of its inrerior angles. what is the name of this polygon?
Click here to see answer by Alan3354(69443)

Question 853337: The content of a sphere with a volume of 324 cm^3 is poured into a cylindrical vessel of the same radius as that of the sphere. If the cylindrical vessel is only 3/4 filled, find the height of the cylindrical vessel. Use pi = 3.14

Click here to see answer by mananth(16946)

Question 855066: What is the measure of each interior angle is the regular polygon exterior angle is 15 degrees

Click here to see answer by Alan3354(69443)

Question 855465: in a regular polygon, each exterior angle is 140 degrees less than each interior angle. How many sides has the polygon?
Click here to see answer by Alan3354(69443)

Question 855465: in a regular polygon, each exterior angle is 140 degrees less than each interior angle. How many sides has the polygon?
Click here to see answer by KMST(5328)

Question 855470: Hi! The size of each exterior angle of a polygon is x and the size of each interior angle is 5x. Find the value of x and the number of sides of the polygon. please x

Click here to see answer by Alan3354(69443)

Question 855787: I am a regular polygon with one exterior angle of 20 degrees. What is the sum of my interior angles?
Click here to see answer by KMST(5328)

Question 855850: The circumference of a circle is 64pie units. What is the area of the circle?
Click here to see answer by Alan3354(69443)

Question 856293: what regular polygon has an exterior angle that measure 60 degrees

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Question 856711: The measure of one exterior angle of a regular polygon is 30 degrees, find it's number of sides

Click here to see answer by Alan3354(69443)

Question 856992: the perimeter of a regular pentagon abcde is 50 meters what is the legthn of each side

Click here to see answer by JulietG(1812)

Question 858320: Yvette is making a circular tablecloth with diameter of 5 feet.To the nearest square foot,how much cloth will be used in the tablecloth?
Click here to see answer by checkley79(3341)

Question 858404: Can A Polygon Have A Central Angle Of 33�?
Click here to see answer by solver91311(24713)

Question 859516: find the measure of a central angle of a regular polygon with 36 sides
Click here to see answer by stanbon(75887)

Question 859611: a convex polygon has 20 sides, find the sum of the interior angles.
Click here to see answer by jim_thompson5910(35256)

Question 859614: the sum of the interior angles of a convex polygon is 1080 (a)how many sides does the polygon have, (b)suppose the polygon is reular, what is the measure of each interior angles?
Click here to see answer by jim_thompson5910(35256)

Question 860051: Can you find how many sides a regular polygon has if the interior angle is 35
Click here to see answer by Alan3354(69443)

Question 860587: The ratio of internal and external angle of a regular polygon is 3:2, then the number of sides of polygon is ?
Click here to see answer by ewatrrr(24785)

Question 860521: In a regular polygon, the apothem measures 3 in. Each side of the same regular polygon measures 6 in.
a)Find the perimeter of the regular polygon.
b)Find the length of radius for this polygon.
It'll be fine if you could just tell me how many sides the polygon has.
Click here to see answer by ben720(159)

Question 861776: What value of x will make the polygon a parallelogram? x, 2x
Click here to see answer by Fombitz(32388)

Question 862605: An equilateral triangle and a regular polygon have the same perimeter. Each side of the pentagon is three inches shorter than the of the triangle. What is the perimeter of the triangle?
Click here to see answer by ben720(159)

Question 862924: a parallelogram has sides 24.1m and 32.3m. the height corresponding to the 24.1m base is 9.9m. what is the height, to the nearest tenth of a meter, corresponding to the 32.3m base?
Click here to see answer by dkppathak(439)

Question 862922: The area of a regular octagon is 45cm squared. What is the area of a regular octagon with sides four times as large as the sides of the first octagon? please help!
Click here to see answer by Alan3354(69443)

Question 862958: What is the are of a regular octagon of sides 8cm and included angle of 60 degrees
Click here to see answer by Alan3354(69443)

Question 862844: The sum of the measures of the vertex angles of a certain polygon is 2880�. How many sides does the polygon have?

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Question 864131: How do you solve for the area if a regular polygon with a perimeter of 72ft and an interior angle of 170 degrees?
Click here to see answer by Alan3354(69443)

Question 864251: The sum of the interor angles of a polygon is 1260degree.what are the number of sides of the polygon?

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Question 865194: Construct a regular octagon
with the side 4 cm and the internal angles of size 140 (degrees), Label the figure
Click here to see answer by Alan3354(69443)

Question 865604:
Find the number of sides of a regular polygon if one interior angle is 120 degrees.
6
5
4
3
Click here to see answer by htmentor(1343)

Question 865744: The measures of the angles in a quadrilateral are represented by x, 2x, 3x, and 3x.
Write an equation that would allow you to solve for the value of x.
Solve for the value of x
Click here to see answer by jim_thompson5910(35256)

Question 866279: two polygons (triangles) are similar. Find the value of y.
Hypotenuse of 1st Triangle=15
Hypotenuse of 2nd Triangle=10
Leg a of 1st Triangle=y+3
Leg a of 2nd Triangle=8
Leg b of 2nd Triangle=6

My Work:
15/10=y+3/8
Not sure if that's how you start it
Click here to see answer by richwmiller(17219)

Question 867568: What is the area and perimeter of an octagon with a radius of 11?
I have tried (1/4)* sqrt3 (s^2) but am not sure.
Click here to see answer by Alan3354(69443)

Question 870828: URGENT HELP NEEDED! PLEASE SHOW WITH WORKINGS!
A regular hexagon is circumscribed about a circle with a radius of 3 cm with centre O.
(a) What is angle EOD?
(b) Find the area of triangle EOD and hence find the area of the hexagon ABCDEF.
Click here to see answer by rothauserc(4718)

Question 873099: What is the similarity ratio of two squares with the areas of 16 square meters and 25 square meters?
Click here to see answer by stanbon(75887)

Question 873215: A sand pile is shaped like a cone as illustrated below. How many cubic
yards of sand are in the pile. Round to the nearest tenth. (π= 3.14)
Click here to see answer by Fombitz(32388)

Question 873445: An exterior angle of a regular polygon measures 18 degree. How many sides does the polygon have?

Click here to see answer by Alan3354(69443)

Question 873449: Find the sum of the interior angles of a 20-sided polygon
Click here to see answer by Alan3354(69443)

Question 873748: find the area of the polygon with vertices
D (-1,2)
E (2,2)
F (2, -1)
G (-3,-1)

Click here to see answer by ewatrrr(24785)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285