Questions on Geometry: Parallelograms answered by real tutors!

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Question 417403: An isosceles trapezoid has vertices at (-2, 1), (2, 1), (5, -1), and
(-5, -1). Find the measure of each diagonal.
Click here to see answer by ewatrrr(10682)

Question 417683: A parallelogram has vertices as follows: (-4,-5), (2,-5), (4,1), (-2,1). Find the length of the longer diagonal.
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Question 419349: Give the best name for a quadrilateral whose vertices have the given coordinates.
B(-3, 0) F(-2, 7) J(5, 8) N(4, 1)
Click here to see answer by duckness73(43)

Question 419657: 1. Determine whether the statement is always true, sometimes true, or never true. The length of the hypotenuse of a right triangle is sqrt 2 times the length of one of the legs of the triangle.
A) Always true
B) Sometimes true
C) Never true
Click here to see answer by jim_thompson5910(28504)

Question 420932: what will the graph look like for the compound equaulity of -3 is less than 5x + 2 is less than or equal to 12
Click here to see answer by ilana(307)

Question 421284: in parallelogram SONG, SO= 2X+4, ON= 3X-6, and NG 4X-16. Explain why SONG is a rhombus
Click here to see answer by MathLover1(6622)

Question 422474: PLEASE AND THANK YOU:)
The opposite sides of a paralleogram are represented by 2X+10 and 3X-20 find the lengths of the third side represented by 4x-1
Click here to see answer by sudhanshu_kmr(1152)

Question 422569: What formula do u use to prove that a figure is a parallelogram??
Click here to see answer by richard1234(5390)

Question 423189: How do you find the legth mesure of the sides on a parallelorgram that on a graph?
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Question 423862: Can anyone help me come up with several property lists for an octagon?
Click here to see answer by Alan3354(30983)

Question 425833: if a rectangle is 18.5 of lenght and whith is 7.5 whats the answer?
Click here to see answer by Alan3354(30983)

Question 425895: Opposite angles have the same meausres. Each of the two larger angles in a parallelogram is 20degrees less than 3 times the smaller angles. Find the measure of each angle. Answer is the smaller angles are 50 and the larger angles are 130 but how do I come up with this?
Click here to see answer by Theo(3458)

Question 427666: Find values of x and y for which ABCD must be a parallellogram.
3y+3= x-11
5y-6=x+2
Click here to see answer by Alan3354(30983)

Question 428192: What is the distance between points A(-2,2) and B(1,6)
please and thank you
Click here to see answer by Alan3354(30983)

Question 428512: A parallelogram had two sides of 34 and 27 what are the other sides?
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Question 429336: What is the area of a rectangle with vertices (2,4),(5,4),(5,10), and (2,10)
Click here to see answer by Alan3354(30983)

Question 429789: Three of the vertices of ABCD are given. Find the coordinates of D.
A (3,6), B (-3,2), C(6,3), D(x,y)
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Question 430390: A quadrilateral MUST be a parallelogram if it has
A) one pair of adjacent sides equal.
B)one pair of parallel sides.
C)a diagonal as axis of symmetry .
D)two adjacent angles equal .
E) two pairs of parallel sides.
Click here to see answer by richard1234(5390)

Question 430960: A parrallelogram has an area of 52 centimeters and its base is 2h+5. What is the hight. Please
Click here to see answer by josmiceli(9661)

Question 430960: A parrallelogram has an area of 52 centimeters and its base is 2h+5. What is the hight. Please
Click here to see answer by solver91311(16868)

Question 432324: Determine whether the lines are parallel, perpendicular, or neither.

y = 5( 4x + 9) and y = - 1/20x - 4

A)

Parallel

B)

Perpendicular

C)

Neither

Click here to see answer by stanbon(57246)

Question 433022: How to solve this problem?
In an isosceles trapezoid, one diagonal is labeled 3x - 8 and the other diagonal is labeled 22. What is the value of x?
Click here to see answer by ewatrrr(10682)

Question 433653: How do I find the variables of a rectangle? -Geometry Chapter 6-

Click here to see answer by stanbon(57246)

Question 434981: Two similar parralograms have areas 125m and 80m. The height of the the larger parallelogram is 10m. What are the length of the bases of both parallelograms?
Click here to see answer by robertb(4012)

Question 435220: why are you so gay !
Click here to see answer by stanbon(57246)

Question 436440: Determine the area of a parallelogram if the base is 12 cm, the side is 9cm and the height is 7cm.
Please show how you get the answer so I may try on my own. Thanks SO MUCH!
Click here to see answer by Alan3354(30983)

Question 437872: Line IG is perpendicular to which segment?
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Question 438853: How to solve this problem?
In parallelogram ABCD, angle A is 7x + 4 and angle B is 162°. Find the value of x.
Click here to see answer by Gogonati(809)

Question 442542: 2x-15
Click here to see answer by rwm(914)

Question 444485: "The pairs (-2, -3), (-2, 2), (4, -3) can serve as three of four vertices for three different parallelograms. Find the fourth vertex of each parallelogram."
I am completely lost. I know the fourth set is (4, 2), but what else do I have to solve for? The question says 3 parallelograms? There is nothing in my book regarding this...help please?
Liz
Click here to see answer by solver91311(16868)

Question 446588: a parallelogram has an area of 91 square meters and the base is 2x+3 and height is 2x-3 what is X?
Click here to see answer by Alan3354(30983)

Question 447183: Here's my question
Melinda wants to add medicince to her aquarium. The instructions suggest adding one drop of medicine for every 2 liters of water. The base of the aquarium measures 20 cm by 25 cm. The aquarium is filled with water to a height of about 40 cm.
How many drops of medicine should Melinda add to her aquarium
Note:1 liter=1000 cm3
Click here to see answer by jorel1380(2518)

Question 448871: In the parallelogram shown, find x in terms of a and b.
Click here to see answer by Alan3354(30983)

Question 451027: how do u find the value of h in a parallelogram
Click here to see answer by solver91311(16868)

Question 451004: Please tell me where we went wrong. The answer does not check out when you put it back into the equation. I know what the right answer is from trial and error, but I can't get the equation to get the right answer for me. WHAT AM I DOING WRONG? HELP!
The problem is: what is the height of a triangle if the base= 1/2h and the area = 196 mmsquared?
height = h
base = 1/2 h
A= 196 mm squared
so
A=1/2bh
A=1/2(1/2h)(h)
196=1/2(1/2h)(h) can't we multiply both sides by 2 to get...?
392=(cancels)(cancels h)(2h) or
392=2h*h
392=2h squared (divide both sides by 2)
196=h squared (take the square root of h and 196)
14=h
So height = 14 and base= 1/2h=1/2(14)/7.
Check answer:
196 = 1/2 (7) (14)
196 = 1/2 * 98
196 does not = 49

Click here to see answer by edjones(7569)

Question 452501: the measure of two adjacent angles of a parallelogram are in the ratio of 3:2 find the measure of each of the angles of the parallelogram
Click here to see answer by poliphob3.14(115)

Question 454091: on a parallelogram a=(2x+10)°
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Question 454090: on a paralleogram a=(2x+10)° b= 3x° whats does x equal?
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Question 454903: If the measure of each exterior angle of a regular polygon is 18, find the number of sides of the polygon
Click here to see answer by stanbon(57246)

Question 455009: Draw the parallelogram with vertics A(1,3), B(5,2), C(3,6) and D(7,6) on a coordinate plan. Find the area of the parallelogram
Click here to see answer by Alan3354(30983)

Question 455343: The base of a parallelogram is 28.4 centimeters. The height is one fourth of the base. Find the area of the parallelogram
Click here to see answer by ilana(307)

Question 456451: Quadrilateral abcd is a rhombus with an area of 600 square inches and diagonal ac=30 what is the perimeter of quadrilateral abcd?

Click here to see answer by zeti68(10)

Question 456474: Give the coordinates of four points that determine a parallelogram.
Click here to see answer by josmiceli(9661)

Question 457024: Find the values of x and y that make the quadrilateral a parallelogram. Show all your work.

Click here to see answer by richard1234(5390)

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