Questions on Geometry: Parallelograms answered by real tutors!

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Question 269875: how to get a different base and height for the same parallelogram 3 different times
Click here to see answer by drk(1908)

Question 270750: If all four sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram ?
Click here to see answer by solver91311(17070)

Question 270748: If two pairs of consecutive sides of a quadrilateral are congruent, then the quadrilateral must be a parallelogram ?
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Question 271372: How to you draw 2 different parallelograms that each have an area of 4 square inches? It can't be a rectangle or a square.
Click here to see answer by Edwin McCravy(8999)

Question 271945: A quadrilateral MUST be a parallelogram if it has ____
Click here to see answer by Edwin McCravy(8999)

Question 260264: "If you connect the midpoints of a square, PROVE that it forms a square." I have to write a proof proving this, and I'm stuck after a certain point. I have a square "K.I.N.G." and its midpoints "A.B.C.D.". I have the sides of KING congruent and angles as right angles. I got the sides of ABCD congruent by the pythagorean theorum (of the small triangles in the corners of the KING square). What is the next step in proving it is a square? How do you get the angles of ABCD right angles?
Click here to see answer by stanbon(57953)

Question 273387: in parallelogram abcd, if angle A = 50 find angle C
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Question 273357: The area of each parallelogram is 120ft. Squared how do I find the value of x when the only given the base of 20ft.?
Click here to see answer by checkley77(12569)

Question 274830: In parellelogram ABCD angle B exceeds angle A by 30 what is the measure of angle D? How do you figure this out
Click here to see answer by dabanfield(803)

Question 275664: how do you find the measure of each interior angle?

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Question 276025: how do you find the measurement of Square ABCD
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Question 276265: this figure must be a parallelogram and I have to prove that 4x + 20 = x + 26.
I don't understand how to do the algebra.
Click here to see answer by jim_thompson5910(28699)

Question 276837: Can you please help me with this proof? Thanks.
Prove: If both pairs of opposite angles of a quadrilateral are congruent, then the quadrilateral is a paralellogram.
I started it by saying:
Given: Angle B is congruent to Angle D.
and Angle A is congruent to Angle C.
Prove: ABCD is a paralellogram.
Thank you very much!
Click here to see answer by solver91311(17070)

Question 277775: the consecutive angles of a parallelogram measure ( x + 30 ) and 4x.what is the measure of the smallest angle ?
Click here to see answer by richwmiller(9144)

Question 277770: A triangle has a perimeter of 105 inches. The lengths of the sides of the triangle are consecutive odd integers. Find the length of the sides and then use Heron’s Formula to find the area of a triangle. Show all work to receive credit
Click here to see answer by richwmiller(9144)

Question 277768: Find the area of an equilateral triangle with height of 9 inches.

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Question 277769: The area of a right triangle is 120 sq. in. The longer leg is 4 more than twice the shorter leg. Find the length of each leg. Show all work to receive credit.

Click here to see answer by checkley77(12569)

Question 278334: Whats a trapezoid
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Question 279304: how do u find the area of a rhombus with a 60 degree angle and 8 sides
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Question 280704: Three vertices of a parallelogram are at the points(0,0),(2,4),and(6,0).What are the coordinates of the fourth vertex?
Click here to see answer by Edwin McCravy(8999)

Question 281181: What is the angle measures of a triangle, a decagon, a pentagon, an octagon, a square, and a hexagon?
Click here to see answer by richwmiller(9144)

Question 281309: Trying to help my duaghter with the folowing problem.
one side will be 5x+y = 7 the other side is 3x-4y=18 We need to slove for x and y.

Thanks for any help.
Click here to see answer by richwmiller(9144)

Question 281318: I should have said that one side is 5x+y and the opposite side is 7, the other part of the problem is that the side is 3x-4y and it's opposite side is 18. I know that x=2 and y=-3 but I need to know how to show my daughter how to get the answer.
Click here to see answer by richwmiller(9144)

Question 281405: Points P(1,2), Q(-1,-1), R(1,-3) are given: determine the coordinates or point S for PQRSto be a parallelogram
Click here to see answer by subudear(55)

Question 281879: In a parallelogram ABCD, angle A = 70 degrees. Find the remaining angles.
Click here to see answer by nabla(475)

Question 281996: is a parallelogram with a base of 3 cm and a base angle of 45 deegrees a square?
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Question 282201: What is the formula P=2(B)+2(H) used to find?
Click here to see answer by oberobic(2304)

Question 282306: QRST is a parallelogram. Parallelogram QRST with points: Q = (0, 0), R = (a, b), S = (?, ?) and T = (c, 0). What are the coordinates of vertex S?
Click here to see answer by xachu4u(10)

Question 283391: the top of the parallelogram reds
x+y
the right side reads
y
the bottom reads
3y-6
and the left side reads
x
How do i find the value of the variables?
please help .. thank you ! :)
Click here to see answer by richwmiller(9144)

Question 283711: find the coordinates of the diagonals of parallelogram X(2,2), Y(3,6), Z(10, 6), and W(9,2)
Click here to see answer by Alan3354(31505)

Question 284155: How do I find the values of a & b that would make the quadrilateral a parallelogram:
2a+6,6b-a,3a-10,5a+1
Click here to see answer by richwmiller(9144)

Question 284558: Please help me with this:
If the area of the parallelogram is 100 square inches, what are the dimensions of the parallelogram? Round to the nearest tenth if necessary.
Please, and thank you!
Click here to see answer by richwmiller(9144)

Question 285112: In baseball, the area of each base is 225 square inches. Each base is a square. What is the length of each side of a base on a baseball field?

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Question 285343: how many 2in. tiles are needed to cover a bathroom that is 6ft. by 8 ft.
?
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Question 285373: what is a quadrangle that is not a parallelogram?
Click here to see answer by user_dude2008(1861)

Question 286436: In parallelogram ABCD, angle A=x degrees and angle B=(3x) degrees.
Find m A. 140 degrees
B. 135 degrees
C. 70 degrees
D. 45 degrees
Thank you so much for all your help!!!!
Click here to see answer by jim_thompson5910(28699)

Question 286363: The measures of two adjacent angles of a parallelogram are in the ratio 5:4. What is the measure of an obtuse angle of the parallelogram?
A. 20◦ B. 80◦ C. 100◦ D. 160◦ E. None of these.
Click here to see answer by mestrydilip(12)

Question 286546: the parallelograms each have an area of 30 centimeters. If you can draw two different parallelograms do they have the same perimeter
??
Click here to see answer by dabanfield(803)

Question 286760: Trying to help my son who is a military student in Hawaii!!
find the variable for each parallelogram
RZ=2x+5
SW=5x-20
Rectangle has a line through one diagonal of RZT and the other is SZW
Click here to see answer by Edwin McCravy(8999)

Question 287096: Show that A(-4,-1), B(0,-2), C (6,1) and D(2,2) are vertices of a parallelogram
Click here to see answer by nburge(1)

Question 287128: The parallelogram has a height that is 2 inches less than the length of its base, and area is 180cm squared. Find the height of the parallelogram.
please help.
Click here to see answer by nyc_function(2733)

Question 287175: area=36ft2,base=ft,h=?
Click here to see answer by richwmiller(9144)

Question 288770: The perimeter of a parallelogram is 54 centimeters. The ratio of the lengths of the sides is 2:7. What are the lengths of the sides?
Click here to see answer by richwmiller(9144)

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