# if in a parallelogram ABCD, m angle b=8x-25 an m angle c=7x+55 how do i solve this probblem

44,347 questions
1. ## Geometry

Can some one please check these for me.Thanks Angle DEF is similar to Angle HJK and the scale factor of angle DEF to anle HJK IS 5/2. If EF =15 FIND JK Here is what I came up with Am I correct 5/2 = EF/JK 5/2 =15/JK 5(JK)=30 JK=30/5 JK=6 Given: ABCD is a

asked by DANIELLE on June 14, 2007
2. ## Geometry

Given: ABCD is a parallelogram;

asked by DANIELLE on June 13, 2007
3. ## Geometry

I really need some help please!!!!! Am I on the right tract? Given: ABCD is a parallelogram;

asked by DANIELLE on June 18, 2007
4. ## Math

In parallelogram ABCD, angle B is 5 times as large as angle C. What is the measure in degrees of angle B? A. 60 B. 100 C. 120 D. 150 Its so confusing to me I know that a parallelogram adds up 180 but this is looking for one angle so obviously you would add

asked by Nahil on August 8, 2019
5. ## Geometry

I have four questions: 1. The area of trapezoid ABCD is 60. One base is 4 units longer than the other, and the height of the trapezoid is 5. Find the length of the median of the trapezoid. 2. In trapezoid ABCD, line BC is parallel to line AD, angle ABD =

asked by jared on December 6, 2014
6. ## geometry

if in a parallelogram ABCD, m angle b=8x-25 an m angle c=7x+55 how do i solve this probblem

asked by Mitchi montanna on December 13, 2010
7. ## Math

In a parallelogram abcd,if angle a =(2x+25) and angle b = (3x_5),find the value of x and the measures of each angle of the parallelogram

asked by Anonymous on October 18, 2016
8. ## Math

In a parallelogram abcd,if angle a =(2x+25) and angle b = (3x_5),find the value of x and the measures of each angle of the parallelogram

asked by Anonymous on October 18, 2016
9. ## Math

In a parallelogram abcd,if angle a =(2x+25) and angle b = (3x_5),find the value of x and the measures of each angle of the parallelogram

asked by Anonymous on October 18, 2016
10. ## Geometry

ABCD is a parallelogram with angle B= 120, angle C= 60, angle D= 2x+5y, and angle A= 4x+y. Find the values of x and y. Check your solution, only an algebraic solution will be accepted.

asked by Ralph on May 4, 2012
11. ## geometry

In Parallelogram ABCD, angle A=53 degrees. What is angle C? (Angle C is diagonal from angle A.)

asked by BaileyBubble on December 12, 2012
12. ## Geometry

parallelogram ABCD: Angle BAC = 35 and angle BCA = 20 How can I find the measure of angle BAD and the measure of angle ABC?

asked by Z on April 1, 2018
13. ## math

In a parallelogram ABCD,if DO and CO bisect angle D and angle C respectively, what will be the value of angle DOC

asked by Anonymous on October 31, 2015
14. ## MAth

ina given parallelogram ABCD THE ANGLE BISECTOR OF ANGLE A BISECTS BC .WILL ANGLE BISECTOR OF B ALSO BISECT AD?GIVE REASON.

asked by DEEPI on May 1, 2017
15. ## math

In parallelogram ABCD,M is the mid point of diagonal BD;if BM bisects angle ABC,then what is the measurement of angle AMB?

asked by Rubi on May 27, 2016
16. ## maths

ABCD is a parallelogram the angle bisector of angleA and angleD intersect at O. Find the measure of angle AOD

asked by ganga on February 5, 2013
17. ## Math

In parallelogram ABCD, AB=10cm, Angle A = 70 gradus, diagonal DB is perpendicular to AB. Find CB, DB, area of ABCD.

asked by Mike on January 24, 2018
18. ## geometry

In parallelogram ABCD, BC = 8, DC = 12, and measure of angle D is 50 degrees. Find the area of the parallelogram to the nearest tenth.

asked by josh on January 23, 2012
19. ## math

Given: ABCD is a parallelogram AM , BN − angle bisectors DM = 4 ft, MN = 3 ft Find: The perimeter of ABCD

asked by annie on May 15, 2017
20. ## MMATH08

IN PARALLELOGRAM ABCD, ANGLE BISECTOR OF ANGLE A BISECTS BC. WILL ANGLE BISECTOR OF ANGLE B ALSO BISECT AD?

asked by deevi on May 2, 2017
21. ## geometry

Given: QRST is a parallelogram. Prove: QRST is a square. Complete the proof below by choosing the reason for line number 2 and line number 6. Reason Statement 1. QRST is a parallelogram. Given 2. QRST is a rectangle 3. is a right angle Definition of a

asked by karrie on January 5, 2012
22. ## MATH8

IN A PARALLELOGRAM ABCD, THE ANGLE BISECTOR OF ANGLE A BISECTS BC. WILL ANGLE BISECTOR OF B ALSO BISECT AD ?

asked by deevi on May 1, 2017
23. ## Geometry

Use parallelogram ABCD to answer the following. Diagonals BD and AC bisect at O. 1.measurement of angle BAD = 3y - 5 find angle BCD 2. AC = 12.8 cm find OC

asked by Lissa on September 21, 2011
24. ## geometry theorems

I have six questions which will be on a test two weeks from now, and I do not understand. Help me find out these theorems for the blanks. 1. If one pair of consecutive sides of a parallelogram are congruent, then the parallelogram is a_______? 2. If the

asked by mhaidar9108 on February 13, 2008
25. ## MMATH08

IN PARALLELOGRAM ABCD, BISECTOR OF ANGLE A BISECTS BC,WILL BISECTOR OF ANGLE B BISECT AD,EXPLAIN HOW.

asked by DIPI on May 2, 2017
26. ## SOLID

the altitude BE of parallelogram ABCD divides the side AD into segments in the ratio 1:3. Find the area of the parallelogram if the length of its shorter side is 14 cm, and one of its interior angle measures 60 degrees.

asked by Anonymous on December 8, 2013
27. ## Math check

1. If LMNO is a parallelogram, and LM=2y-9 and NO=y-2, find the value of 'y'. Does y=7? 2. RSTV is a parallelogram. RT and SV intersect at Q. RQ=5x+1 and QT=3x+15. Find OT. Does QT=7? 3. RATS is a parallelogram. If angle s= (8x) and angle t=(7x) then find

asked by Anonymous on February 22, 2015
28. ## geometry

Suppose the parallelogram shown has angles defined by the following expressions: angle A = 6x + 19; angle B = 3x - 21; angle C = 6x + 19; and angle D = 3x - 21? What is the measure of the largest angle?

asked by Erin on October 16, 2011
29. ## geometry

Suppose the parallelogram shown has angles defined by the following expressions: angle A = 6x + 19; angle B = 3x - 21; angle C = 6x + 19; and angle D = 3x - 21? What is the measure of the largest angle?

asked by Erin on October 16, 2011
30. ## geometry

ABCD is a parallelogram. Angle B is equal toand angle D is equal toFind x

asked by Anonymous on July 21, 2011
31. ## Math

Parallelogram ABCD is inscribed in a circle. Then, the measure of angle A must be 90?

asked by Ryan on January 8, 2017
32. ## maths

ABCD is a parallelogram in which one angle is 120 degree. Find the other three angles

asked by geetha on August 9, 2017
33. ## math

Abcd is a parallelogram in which angle add =75 and side an is produced to e find x+y

asked by anu on November 13, 2016
34. ## math

In a square ABCD, point P is chosen inside ABCD and point Q outside ABCD such that APB and BQC are congruent isosceles triangles with angle APB = angle BQC = 80 degrees. T is a point where BC and PQ meet. Find the size of angle BTQ

asked by Lola on August 28, 2018
35. ## Geometry

ABCD is a parallelogram. If angle B is equal to 2x and angle A is equal to x + 30, find x.

asked by Alexis on September 4, 2011

ABCD is a parallelogram where AO and BO bisect angles A and angle B respectively. What is the measure of ∠AOB? What's the answer? Thanks!!!! :)

asked by mathemagiacian on August 10, 2013
37. ## MATHS

ABCD is a cyclic quadrilateral in which angle BAD=70,angle ADC=80 and angle ABD=55,AC and BD intersect at M,find angle CMD

asked by BHAGWAN on December 21, 2014
38. ## mathematics

ABCD is a parallelogram.the bisectors of the angle and C meet the diagonal BD in P and Q respectively. Prove that triangleAPQ ~=triangleCOD.

39. ## Math repost

trapezium ABCD, with AB and DC being parallel, with diagonal connecting A and C, angle ABC is 86, angle ADC is y, angle dac is 66 and angle bac is x, no angle given for bcd or bca or acd. find x and y, So I said that BCD is 94 deg, but then I get stuck I

asked by Evie on February 5, 2014
40. ## PROBLEM SOLVING IN MATHEMATICS

what do you need to know to solve this? you have kite ABCD. angle B is at the top of the kite and measures 80 degrees. angles A and C are on the sides and angle D is at the bottom of the kite. what is the largest siza that angle A or C could be?

asked by alya on October 14, 2011
41. ## PROBLEM SOLVING IN MATHEMATICS

what do you need to know to solve this? you have kite ABCD. angle B is at the top of the kite and measures 80 degrees. angles A and C are on the sides and angle D is at the bottom of the kite. what is the largest siza that angle A or C could be?

asked by HELP ME!!!! on October 18, 2011
42. ## math

The sides of a parallelogram are 15 ft and 17 ft. One angle is 40° while another angle is 140°. Find the lengths of the diagonals of the parallelogram (to the nearest tenth of a foot)

asked by ana on March 31, 2010
43. ## MATH

The ratio of two angles of a triangle is 3:2.The remaining angle is the smallest which is half the largest angle of the triangle. What is the measure of smaller angle of a parallelogram if sum of both smaller angles of the triangle is equal to the larger

asked by MAMTA on September 2, 2015
44. ## MATH

ABCD is a quadrilateral in which AB parallel DC and AD=BC.prove that (1)angle A + angle C=180 degree= angle + angle D (2)AC=BD

asked by MAJUMDER on May 1, 2012
45. ## math

ABCD is a quadrilateral in which AB parallel DC and AD=BC.prove that (1)angle A + angle C =180 degree = angle B + angle D (2)AC=BD

asked by majumder on April 22, 2012
46. ## geometry honors

Can you prove ABCD is a parallelogram based on the given information? Explain. Given: x = 5, y = 4 Prove: ABCD is a parallelogram. The image consists of a quadrilatera ABCD with their sides AB, BC, CD, DA as 3x + 12, 7y - 8, 6x - 3 and 5y respectively.

asked by jacky on January 8, 2015
47. ## Geometry

ABCD is a quadrilateral inscribed in a circle, as shown below: Circle O is shown with a quadrilateral ABCD inscribed inside it. Angle A is labeled x plus 16. Angle B is labeled x degrees. Angle C is labeled 6x minus 4. Angle D is labeled 2x plus 16. What

48. ## geometry

Suppose ABCD is a trapezium in which AB is parallel to CD and AD=BC.prove that angle A=angle B and angle C=angle D.

asked by sthabiso on January 10, 2014
49. ## kv bolarum

A parallelogram ABCD angle A is 3x-2 and angle C is 2x+23. Then, the measure of angle A is A.73 degree B.75 degree C. 85 degree D. 90 degree.

asked by sri on March 4, 2017
50. ## maths --plse help me..

ABCD is a parallelogram in which BC is produced to E suh that CE=BC.AE intersects CD at F.if ar(DFB)=3cm^2. find the area of the parallelogram ABCD.

asked by amit on December 12, 2012
51. ## Math

Let ABCD be a parallelogram. Extend line BC past B to F, and let E be the intersection of lines AB and DF. If the areas of triangles BEF and ADE are 1 and 9, respectively, find the area of parallelogram ABCD. I have no idea!!

asked by Geometry HELP on November 29, 2015
52. ## maths --plse help me..

ABCD is a parallelogram in which BC is produced to E suh that CE=BC.AE intersects CD at F.if ar(DFB)=3cm2find the area of the parallelogram ABCD.

asked by amit on December 12, 2012
53. ## maths --plse help me..

ABCD is a parallelogram in which BC is produced to E suh that CE=BC.AE intersects CD at F.if ar(DFB)=3cm2find the area of the parallelogram ABCD.

asked by amit on December 12, 2012
54. ## geometry

in an isosceles trapezoid, ABCD, AD congruent BC. diagonal AC bisects angle DAB. if the measure of angle CAB = 15, find: the measure of angle b, measure of angle BCA, measure of ACD, and the measure of angle D

asked by kyle on May 3, 2016
55. ## Maths

ABCD is a quadrilateral in which angle ABC = 73°, angle C = 97°, angle D =110° if AE is parallel to DC & BE is parallel to AD & AE intersects BC at F find the measure of angle EBF

asked by Vaisshnavi on September 13, 2016

ABCD is a quadrilateral with angle ABC a right angle. The point D lies on the perpendicular bisector of AB. The coordinates of A and B are (7, 2) and (2, 5) respectively. The equation of line AD is y = 4x − 26. find the area of quadrilateral ABCD

asked by ALEX on December 22, 2016
57. ## maths

ABCD ia a parallelogram whose diagonals intersecting at E. AC is produced to F such that CF=AE. Prove that ar(BDF)=ar(parallelogram ABCD)

asked by Anonymous on December 23, 2012
58. ## maths --plse help me..

ABCD ia a parallelogram whose diagonals intersecting at E. AC is produced to F such that CF=AE. Prove that ar(BDF)=ar(parallelogram ABCD)

asked by Anonymous on December 24, 2012
59. ## mtti

A triangle has vertices a(0,2),b(3,7)and c(0,6)give that abcd is parallelogram find the area of parallelogram abcd

asked by Sydney on April 5, 2017
60. ## geometry

The longer diagonal of a parallelogram measures 62 cm and makes an angle of 30 degrees with the base. Find the area of the parallelogram if the diagonals intersect at angle of 70 degrees.

asked by Katreena on May 5, 2013
61. ## geometry

the measure of an angle of a parallelogram is 12 degrees less than 3 times the measure of an adjacent angle. explain how to find the measures of all the interior angles of the parallelogram.

asked by sab on March 7, 2011
62. ## math

If one angle of parallelogram is twice of its adjacent angle. Find angle of parallelogram.

asked by bavya on November 14, 2015
63. ## math

if an angle of parallelogram is two third of its adjacent angle,find the angles of the parallelogram

asked by zeeshan on August 11, 2016
64. ## Geometry

In parallelogram PQRS, angle P=(119-y)° and angle Q=(3y-15)°. Find the measure of angle S.

asked by Cindy on September 12, 2010
65. ## math

The vertices of quadrilateral ABCD are (A(1,1), B(1,5), C(5,5) and D(7,1). You want to transform ABCD into a parallelogram by only moving point B. A parallelogram is a four-sided figure with both pairs of opposite sides parallel. What should be the new

asked by Jane on December 30, 2011
66. ## Trigonometry - Geometry - side lengths

In convex quadrilateral ABCD, angle A is congruent to angle C, AB=CD=180, and AD is not equal to BC. The perimeter of ABCD is 640. Find cos A. Hmm...I drew the diagram, and labeled some things, I drew an altitude from D to AB and did some other things, but

asked by Sam on December 6, 2013
67. ## geometry

The measure of an angle of a parallelogram is 12 degrees less than 3 times the measure of an adjacent angle. find the measure of all the interior angels of the parallelogram.

asked by Sarah on February 23, 2011
68. ## Algebra

two opposite angle of a parallelogram are(5x-20) and (70-4x) what are the measurements of other angle of parallelogram

asked by Sabir on November 2, 2016
69. ## MATHS

In a quadrilateral ABCD, Angle A = 120 degrees, Angle B = 140 degrees. The bisectors of the angles C and D meet at the point Y. What is the size of the angle DYC?

asked by Lindsay on July 12, 2008
70. ## Maths

In a quadrilateral ABCD, angle A = 120 degrees angle B = 140 degrees The bisectors of the angles C and D meet at the point Y. Find the size of the angle DYC

asked by Lexi on September 30, 2008
71. ## Geometry

Quadrilateral ABCD is a parallelogram. If adjacent angles are congruent, which statement must be true? A. Quadrilateral ABCD is a square. B. Quadrilateral ABCD is a rhombus. C. Quadrilateral ABCD is a rectangle. D. Quadrilateral ABCD is an isosceles

asked by Lauren on July 5, 2017
72. ## Math

In trapezoid $ABCD$, $\overline{BC} \parallel \overline{AD}$, $\angle ABD = 105^\circ$, $\angle A = 43^\circ$, and $\angle C = 141^\circ$. Find $\angle CBD$, in degrees.

asked by justarandomboy on April 22, 2016
73. ## GEOMETRY

ABCD is an inscribed quadrilateral. AD, BC are produced to meet at X. If angle B= 80 degrees and angle X= 30 degrees, find angle XCD.

asked by HELP PLS MARVELOUS on January 9, 2013
74. ## geometry

ABCD is a parallelogram. Let C′ be a point on AC extended such that the length of AC′=1.2AC. Let D′ be on the segment BD such that the length of BD′=0.9BD. The ratio of the area of the quadrilateral ABC′D′ to the area of the parallelogram ABCD

asked by deepak on March 18, 2013
75. ## Math

asked by Christopher on March 7, 2014
76. ## Geometry

Given quadrilateral ABCD,ABllDC, diagonal AC. we can prove that angle 1= angle 2, but cannot prove angle 3=angle4 Why is this. What must be true about the sides of the Quadrilateral in order to prove that angle 3 is congruent to angle 4? My answer: The

asked by DANIELLE on February 26, 2007
77. ## Geometry

Given quadrilateral ABCD,ABllDC, diagonal AC. we can prove that angle 1= angle 2, but cannot prove angle 3=angle4 Why is this. What must be true about the sides of the Quadrilateral in order to prove that angle 3 is congruent to angle 4? My answer: The

asked by DANIELLE on March 4, 2007
78. ## geometry

line BD bisects angle ABC. Solve for X and find the measures of angle ABC. angle ABD= 5X, angle DBC= 3X + 10 I don't really understand this question so can someone please help me solve this and explain to me how they solved it/ show the steps of how to

asked by Tonya on September 2, 2014
79. ## math

A parallelogram has diagonals of length 10 cm and 17 cm. An angle between them is 125°. Find: a. the area of the parallelogram b. the dimensions of the parallelogram. I have found a. to be: 1/2 * 10 * 17 *sin(125) = 69.63cm^2 Just need help with part b

asked by anonymous on August 10, 2018
80. ## geometry

1. the opposite angles of a parallelogram measure(x=30) and (2x-50).Find the measure of each angle of the parallelogram. 2. the ratio of two consecutive angles of a parallelogram is 2:3. find the measurement of the angles of a parallelogram. 3.the

asked by marycon on November 7, 2010
81. ## geometry

ABCD is a parallelogram. BM= 22-3x, DM=10+9x, AM=7y+13 and CM=2y+38. solve for x and y

asked by chrissy on January 17, 2012
82. ## geometry

In a triangle ABC, angle B is 3 times angle A and angle C is 8 degrees less than 6 times angle A. The the size of the angles. Size of angle A is = Size of angle B is = Size of angle C is = can someone please help me with this..? I am very weak at

asked by Anonymous on September 26, 2009
83. ## Math

1. The figure below is a parallelogram which statement must be true? D___________E | | |__________ | F G a.line Df is parallel to line de b. Line Df is parallel to line eg c. Line fg is parallel to line eg d. Line fg is parallel to line df 3. All __ are

asked by Help on February 8, 2016
84. ## maths --plse help me..

ABCD IS A PARALLELOGRAM, G IS THE POINT ON AB SUCH THAT AG = 2GB, E IS A POINT OF CD SUCH THAT CE = 2DE AND AND F IS A POINT OF BC SUCH THAT BF = 2FC. PROVE THAT 1) ar(EGB) = 1/6 ar(ABCD) 2)ar(EFC) = 1/2 ar(EBF) 3) ar(EBG) = ar(EFC) 4) FIND WHAT PORTION OF

asked by sania on December 12, 2012
85. ## maths --plse help me..

ABCD IS A PARALLELOGRAM, G IS THE POINT ON AB SUCH THAT AG = 2GB, E IS A POINT OF CD SUCH THAT CE = 2DE AND AND F IS A POINT OF BC SUCH THAT BF = 2FC. PROVE THAT 1) ar(EGB) = 1/6 ar(ABCD) 2)ar(EFC) = 1/2 ar(EBF) 3) ar(EBG) = ar(EFC) 4) FIND WHAT PORTION OF

asked by sunil on December 12, 2012
86. ## Geometry(so lost)

Given ∆ABC≅∆PQR,m (angle)B=3v+4,and m(angle)Q=8v-6,find m(angle)B and m(angle)Q (quick question: what would be the symbol for "angle" on here?) How do I solve this???? STEP-BY-STEP would be amazing! Thank you.

asked by Mirabella♥ on March 11, 2016
87. ## geometry

in the abcd parallelogram ad=10 units ac= 12 units ed= 4.5 units ab= 8 units. If angle aed = 100 then dec= ?

asked by miya on December 9, 2010
88. ## Geometry

ABCD is an isosceles trapezoid. Angle CDA = 80. Find the measure of angle BAD.

89. ## Geometry

ABCD is a convex quadrilateral satisfying AB=BC=CD, AD=DB and \angle BAD = 75^\circ. What is the measure of \angle BCD?

asked by John on March 7, 2013
90. ## Geometry

ABCD is a convex quadrilateral satisfying AB=BC=CD, AD=DB and \angle BAD = 75^\circ. What is the measure of \angle BCD?

asked by John on March 7, 2013
91. ## geometry

ABCD is a parallelogram. solve for x and find the lengths of BC=16+2x and AD=10+8x

asked by ana on January 4, 2011
92. ## maths

An angle of a parallelogram is 20 degree less then its adjacent angle. Find the measure of its remaining angles.

asked by asha Meena on June 14, 2016
93. ## geometry

The angle bisector of ∠ACD in rhombus ABCD makes a 64° angle with the diagonal BD . Find the measure of ∠BAD.

asked by alec taitano on April 9, 2017
94. ## GEOMETRY

ABCD is a cyclic trapezium whose sides AD and BC are parallel to each other .If angle ABC = 72 degree then what is the measure of the angle BCD .

asked by ANIMESH on October 29, 2012
95. ## geometry

The diagonals of a rectangle ABCD meet at O. If angle BOC is equal to 44 degree, find angle OAD.

asked by m.d. on August 3, 2011
96. ## Geography

Rectangle ABCD AB parallel DC prove angle A congurent ANgle B

asked by rajput on October 19, 2016
97. ## Maths

ABCD is a rectangle with angle BDC =28°.Determine angle DBC

asked by Ridhyma on June 7, 2016
98. ## Geometry

I am doing 7th grade algebra, and my homework is due by 9:00 and I don't know how to solve this question: Find the measures of supplementary angles 1 and 2 if, A) m angle 1 is less than m angle 2 by 40 degrees B) m angle 1:m angle 2=5:4 Please help soon my

asked by Ava on September 24, 2016
99. ## math

In a parallelogram in which angle A = 135 degree determine the measure of angle A and B

asked by sehaj on October 19, 2016
100. ## Geometry

In parallelogram ABCD, P is mid-point of AB.CP and BD intersect each other at point O. If area of triangle POB = 40 cm^2, find : (i) OP :OC (ii) areas of triangle BOC and PBC (iii) areas of /\ ABC and parallelogram ABCD ? ?

asked by Sanjna on September 30, 2011