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Geometry: Parallelograms

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Question 174742: a diagonal of a square lies on the line 3x-5y=14. one vertex is at (0,4). Find an equation of the line that contains the other diagonal.
Click here to see answer by Alan3354(6097)

Question 174743: the equation of two adjacent sides of a parallelogram are x+2y = 0 and 3x + y +3 = 0. One vertex has coordinates (8,-7). Find an equation of each of the lines that contain the other two sides of the parallelogram.
Click here to see answer by josmiceli(3013)

Question 174972: Two 12 mm sides of a rhombus form a 60 degree angle. Fine the area of the rhombus. Round your answer to the nearest tenth.
Click here to see answer by ankor@dixie-net.com(6693)

Question 175461: If a Quadrilateral is a parallelogram with perpendicular diagonals then its a rhombus???
True Or False??? PLease Explain why Though.
Click here to see answer by Mathtut(3670)

Question 175534: Could someone help?
- The vertices of a parallelogram are A(-4,-1),B(5,-6), C(11,-3) and D(2,2). Show that the diagonals bisect each other.
Click here to see answer by nycsub_teacher(90)

Question 175896: What are the coordinates of Parallelogram WXYZ; w(-1,2), X(3,3), Y(0,-4), and Z(-4,-4), reflected over the y-axis then rotated 180 degrees about the origin?
Click here to see answer by Edwin McCravy(2922)

Question 176281: Find a trinomial that represents the area of a parellogram whose base is 3x + 2 meters and whose height is 2x + 3 meters Please help I have no idea what to do. Judy
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Question 176815: The shape of a barbeque pit is like a parallelogram with height of 22 in and a base of 48 in. It costs $1.20 per ft^2 to fill the pit with charcoals. How much totally does it cost?

Click here to see answer by Alan3354(6097)

Question 178364: Solve for the variables usin algebra.
I have a parallelogram..the left hand angle is d degrees, the upper righht angle is c degrees, the bottom left angle is (b-10) degrees and the lower right angle is (b+10) degress, and I have to solve for variable b, c, and d.
Click here to see answer by scott8148(3385)

Question 178386: I have a parallelogram with a diagnol that bissects the 4 angles. The first upper diagnol line is 2f-5, the bottom half of that same line is 5f-17. The line that crosses this one left hand side is f+2 and the right hand side is g. I have to solve for each variable. Please help I'm about to go crazy.
Click here to see answer by ilana(236)

Question 179068This question is from textbook Discovering Geometry
: whats the area when the height is 8 and the base is 9 and 12?This question is from textbook Discovering Geometry

Click here to see answer by Alan3354(6097)

Question 179868: opposite angles are 3y-4 and the other is 4x-8
how are we supposed to solve when the letters are different????
Click here to see answer by solver91311(5072)

Question 179885: parellelogram abcd has a diagonal of ac
angle cab is x-12
angle acd is 1/2y
angle d is 4x-8
angle b is 3y-4
please help!
Click here to see answer by Mathtut(3670)

Question 180141: Graph the equation y = -1 / x.
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Question 180217: how do you prove that a parallelogram is a parallelogram
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Question 180217: how do you prove that a parallelogram is a parallelogram
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Question 181179: how do you prove a quadrilaterals?
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Question 181365This question is from textbook

: On problem 10 of chapter 5.5 do you have to first prove the triangles congruent?This question is from textbook

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Question 182595: what are irragular parallelograms?
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Question 182780: Identify the length and width of three different rectangles that have an area of 24cm2 (squared)?
Click here to see answer by Alan3354(6097)

Question 182836: A rhombus has one diagonal equal to the sides. The other diagonal has length 60. How long are the sides?
Click here to see answer by Edwin McCravy(2922)

Question 183576: True or False--If a parallelogram has equal diagonals, then it is a rectangle
Tue or False--The oppostire sides of any quadrilateral are congruent
Click here to see answer by stanbon(26297)

Question 183598This question is from textbook mathematics applications and concepts course 1
: what is the measure of the area of a parallelogram whose base is 5 1/2 feet and whose height is 7 1/2 feet?This question is from textbook mathematics applications and concepts course 1

Click here to see answer by Alan3354(6097)

Question 183820: A non-rectangular parallelogram has a base of of 10cm and a height of 8 cm. What would it look like
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Question 184040This question is from textbook
: please help me with this question.This question is from textbook

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Question 184335: how many degrees is in a parallelogram? thanks
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Question 186973: For A(-2,-4), B(-5,-1), and C(0,-4). find all locations of a fourth point, D, so that a paralleogram is formed using A, B, C, D in any order as vertices. Plot each point D on a coodinate grid and draw the parallelogram.
Click here to see answer by solver91311(5072)

Question 187689: Hello,
Is it possible to state that the following quadrilateral is a parallelogram:
given -
Top and bottom line segments are parallel.
The sides are of equal length to each other.
A diagonal is drawn from lower left corner to upper right.
The quad can be visualized as ABCD (from lower left and going counter clockwise).
I say it is a parallelogram by reason that two internal triangles are congruent (BEC and DEA). Point "E" is developed when I draw a second diagonal from the upper left to lower right corners.
My friend says it is not a parallelogram. He does not see that the two inner triangles are congruent.
Your help would be appreciated.
Click here to see answer by jim_thompson5910(13794)

Question 188622This question is from textbook Prentice Hall Mathematics Geometry
: Find ED and FD in the figure
on problem 22This question is from textbook Prentice Hall Mathematics Geometry

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Question 189851: Two 12mm sides of a rhombus for a 60 degree angle. Fine the area of the rhombus. I just dont understand.
Click here to see answer by jim_thompson5910(13794)

Question 190244: In parallelogram ABCD m Find measure < a
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Question 190245: m
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Question 190492: Figure ABCO is a parallelogram. coordinates are A(a,b) B(a+c,b) C(c,zero) O(zero,zero). What are the coordinates of the point of intersection of the diagonals? What are the coordinates of the point of intersection of the diagonals?
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Question 191322: a parallelogram with opposite sides that are equal, or congruent, and with four right angles
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Question 191571: Points x(-1,1), y(3,5), and z(17,1) are coordinates of three vertices of a parrallelogram. Waht are the possible coordinates of w, the fourth vertex?
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Question 191791: The length of a rhombus is 10 cm an measured angle A is 60 degrees. Find the length of the longer diagonal AC.
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Question 191953: The measure of
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Question 192019: WHAT IS THE NAME OF A QUADRILATERAL THAT IS NOT A PARALLELOGRAM?
Click here to see answer by vleith(1977)

Question 192803: The area of a parallelogram is 60 Ft. The height is 5 Ft. How long is the base?
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Question 193036: ACPB is a parallelogram. Given that A(-3,-2), B(0,9)and C(6,16). Find the co-ordinates of P and the area of ACBP
Click here to see answer by Edwin McCravy(2922)

Question 193680: For each of the following, can the measures represent sides of a right triangle? Please explain your answers so I can better understand the process. Thank you.
(a) 3 m, 4 m, 5 m ________
(b) sq root of 2 cm, sq root of 3 cm, sq root of 5 cm _______
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Question 194310:
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Question 194908: Which can be used to prove triangle TUV is equal and congruent to triangle VWT?
1. SAS
2. AAS
3. ASA
4. HL
The question has a figure shown in a link:
http://i39.tinypic.com/2mdp4av.jpg
Click here to see answer by Mathtut(3670)

Question 195251: A parallelogram has sides 8 and 12. The shorter altitude is 6. Find the length of the other altitude.
I have tried finding the height but nothing has worked.
Click here to see answer by checkley77(7072)

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