Questions on Geometry: Polygons answered by real tutors!

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Question 434150: Find the area of an equilateral triangle (regular 3-gon) with the given measurement.
3-inch radius
A=sq.in.
Click here to see answer by MathLover1(6632)

Question 434377: how do i find the area of a regualr polygon?

Click here to see answer by robertb(4012)

Question 434377: how do i find the area of a regualr polygon?

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Question 434972: I'm stuck on how to find the length of the base for a trapezoid. I have he formula ms=1/2(b1+b2) I plugged in 19 for ms, and 13 for b1 because thats whats given and i just can figure it out.
Click here to see answer by stanbon(57347)

Question 437561: an equialateral triangle with apothem 5.8 cm
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Question 438808: each exterior angle of a regular polygon is 60 degrees how many sides does the polygon have?
Click here to see answer by Alan3354(30993)

Question 439014: is a 36-gon,14-gon, an 18-gon all regular polygons?
Click here to see answer by stanbon(57347)

Question 439488: IF the sum of the measures of the interior angles of a polygon is twice the sum of its exterior angles, how many sides does it have?
Click here to see answer by Gogonati(809)

Question 439487: if the sum of the measures of the interior angles of a polygon equals the sum of the measures of its exterior angles, how many sides does it have?
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Question 439704: 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? thanks
Click here to see answer by solver91311(16885)

Question 439703: Two similiar trapezoids have areas of 676cm squared and 576 cm 2. How do you find the ratio of similarity?
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Question 440286: An 11-sided polygon has 3 sides each of length x centimeters and 6 sides each of length 2x centimeters. The lengths of the other 2 sides are 12 centimeters and 13 centimeters. If the perimeter of the polygon is 100 centimeters, what is the value of x.
Click here to see answer by jorel1380(2518)

Question 440531: if a cube with a 2-in side length is sliced in half what is the surface area of the two pieces
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Question 441071: The exterior angles of a triangle have a 2:3:4 ratio. What is the smallest exterior angle of the triangle
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Question 441236: to the nearest degree, what is the measure of each exterior angle of a regular hexagon
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Question 442003: a pyramid wit a volum of 44 1/3cm has a height of 19cm what is the area of the base
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Question 441998: for a cube each edge has length s. find the length of each edge if the volume of the cube is 64ft
Click here to see answer by nerdybill(6958)

Question 442953: y = 3x – 2 Are the lines parallel, perpendicular, or neither? Explain.
Click here to see answer by Leaf W.(97)

Question 443410: Which polygon has 2 times as many angles as a pentagon?

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Question 443410: Which polygon has 2 times as many angles as a pentagon?

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Question 444556: my njask is next week and i forgot what polygons are can u help me
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Question 444721: A regular hexagon has 5in sides and an apothem of 4.33in. Its perimeter is? Its area is?
Click here to see answer by robertb(4012)

Question 444751: Each interior angle of a regular polygon measures 156 degrees. Find the number of sides.
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Question 444971: If a triangle is an obtuse triangle then it can not be an isosceles triangle.
true or false?
Click here to see answer by Edwin McCravy(8909)

Question 445655: I know thet each polygon below circumscribes the circle...but how do I find the perimater of the polygon?

Click here to see answer by rfer(12657)

Question 445655: I know thet each polygon below circumscribes the circle...but how do I find the perimater of the polygon?

Click here to see answer by richard1234(5390)

Question 445841: the shape is a pentagon. if you have an apothem of 6 and your area of the the shape is 130.8 cm 2[ squared ] how would you find the perimeter?
Click here to see answer by Gogonati(809)

Question 445920: The measures of 5 of the interior angles of a hexagon are: 130°, 120°, 80°, 160°, and 155°. What is the measure of the largest exterior angle?

Click here to see answer by Gogonati(809)

Question 446110: a circular dartboard has a radius of 2 meters and a red circle in the center. Assume you hit the target at a ramdom point. For what radius of the center regions does P(hitting red)= 0.6?
Click here to see answer by stanbon(57347)

Question 448065: How many sides does a regular polygon have whose interior angles meaure 160 degrees?
Click here to see answer by Alan3354(30993)

Question 449626: How many sides does a regular polygon have if the measure of an exterior angle is 24.
Click here to see answer by Gogonati(809)

Question 450018: 1.Which regular polygon has interior angles of 108 degrees each?
2.Which polygon has has an interior angle sum of 1260 degrees?
3.Sarah needs to get a new floor for her rectangular master bedroom. She is considering new carpet but also hard wood floors. She would prefer hard wood but it may be cost prohibitive. If her master bedroom measures 15 feet by 22 feet, her new floor budget is $4500, carpet costs $12.50 a square foot and hard wood floors cost $15 a square foot, can she afford hard wood floor or not?

4.If a square has a perimeter of 128 cm, what is the area of that square?
5.Brady is going to fence in his vegetable garden. If the vegetable garden is in the shape of a trapezoid, the bases are 20 and 17 feet respectively and the other two sides are 9 and 13 feet, how many feet of fence does Brady need in addition to the 3 foot gate?
6.Describe the process used to convert from one measurement to another in the English or US Customary measurement system.
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Question 450805: True or false: There exists a polygon such that the sum of the measures of the interior angles is 180.
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Question 451185: you suck
Click here to see answer by stanbon(57347)

Question 451289: how do u find the area of a polygon
Click here to see answer by richard1234(5390)

Question 453742: What are the measures of the interior and exterior angles of a regular 20-gon, 30-gon, and 36-gon?
Click here to see answer by Alan3354(30993)

Question 453864: find the area of a 24-gon with side lengths of 10inches
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Question 454773: what is the area of a decagon with a perimiter of 20 inches
Click here to see answer by Gogonati(809)

Question 456232: the perimeter od a polygon is 72 feet. An exterior angle of the polygon is 30 degrees. what is the length of each side? so far i have 8(180)-360/8 to find the interior angle and i got 135 degrees which i dont think is right
Click here to see answer by stanbon(57347)

Question 457022: Hi can you explain to me How you find the number of sides in a regular polygon that has an exterior angle of 72
Thanks
Click here to see answer by Alan3354(30993)

Question 457169: hi can you explain to me how to find the size of one interior angle in a regular polygon with 9 sides . thank you
Click here to see answer by Alan3354(30993)

Question 457166: can you explain to me why the exterior angle of a triangle equals the sum of two interior opposite angles thanks alot
Click here to see answer by Alan3354(30993)

Question 457267: how many sides are there in a regular polygon with an exterior angle of 30 degrees

Click here to see answer by stanbon(57347)

Question 457167: hi can you explain to me how to find the number of sides in a regular polygon that has an interior angle of 150. thank you
Click here to see answer by Alan3354(30993)

Question 457443: Can you take me through the step to solving this problem.
Problem- Find the area of a regular 11-gon with side 7cm.
Click here to see answer by MathLover1(6632)

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