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CBSE - IX - Mathematics - Quadrilaterals
what is quadrilaterals
Asked by deepakrim74
9th March 2019,
8:08 PM
CBSE - IX - Mathematics - Quadrilaterals
Why is the angle sum property not applicable to concave quadrilateral?(please explain briefly and if possible with proof and example) Thank you.
Asked by hk.sachdev
9th January 2019,
8:56 PM
CBSE - IX - Mathematics - Quadrilaterals
In the given figure, 𝐴𝐵𝐶𝐷 is a quadrilateral and 𝐴𝑂 and 𝐷𝑂 are bisectors of ∠𝐴and ∠𝐷. The value of ′𝑥 ′ is
Asked by gujarsurjeet007
9th February 2018,
8:33 PM
CBSE - IX - Mathematics - Quadrilaterals
Solve question no. 22
Asked by vikasg13.hardware
29th December 2017,
11:44 AM
CBSE - IX - Mathematics - Quadrilaterals
Please solve question no. 14 with proper explanation
Asked by adityaahuja099
13th November 2017,
7:36 PM
CBSE - IX - Mathematics - Quadrilaterals
Please solve question no 14 with proper explanation
Asked by adityaahuja099
10th November 2017,
4:00 PM
CBSE - IX - Mathematics - Quadrilaterals
The angles of a quadrilateral are in the ratio 3: 5: 9: 13. Find all the angles of the quadrilateral.
Asked by Topperlearning User
16th August 2017,
2:25 PM
CBSE - IX - Mathematics - Quadrilaterals
In the figure, PQRS is a trapezium in which PQ SR. if P = 55o and Q = 70o, find R andS.
Asked by Topperlearning User
16th August 2017,
2:24 PM
CBSE - IX - Mathematics - Quadrilaterals
ABCD is a parallelogram. What special name will you give it if the following facts are known? (i) AB = AD (ii)DAB = 90o (iii) AB = AD and DAB = 90o
Asked by Topperlearning User
16th August 2017,
2:23 PM
CBSE - IX - Mathematics - Quadrilaterals
Prove that the sum of the interior angles of a quadrilateral is equal to 360o.
Asked by Topperlearning User
16th August 2017,
2:22 PM
CBSE - IX - Mathematics - Quadrilaterals
The sides ML and ON of a quadrilateral are produced as shown in the figure. Prove that x + y = a + b
Asked by Topperlearning User
16th August 2017,
2:20 PM
CBSE - IX - Mathematics - Quadrilaterals
How does a trapezium differ from a parallelogram?
Asked by Topperlearning User
16th August 2017,
2:19 PM
CBSE - IX - Mathematics - Quadrilaterals
In the given figure, LMNQ is a parallelogram in which L = 75o and QMN = 60o. Find NQM and LQM.
Asked by Topperlearning User
16th August 2017,
2:19 PM
CBSE - IX - Mathematics - Quadrilaterals
In the given figure, PQRS is a quadrilateral in which PQ is the longest side and RS is the shortest side. Prove that R > P.
Asked by Topperlearning User
16th August 2017,
2:17 PM
CBSE - IX - Mathematics - Quadrilaterals
In a quadrilateral ABCD, the line segments bisecting C and D meet at E. Prove that A + B = 2 CED.
Asked by Topperlearning User
16th August 2017,
2:17 PM
CBSE - IX - Mathematics - Quadrilaterals
Prove that the diagonals of a parallelogram bisect each other.
Asked by Topperlearning User
16th August 2017,
2:15 PM
CBSE - IX - Mathematics - Quadrilaterals
ABCD is a cyclic quadrilateral and O is the centre if the circle. If angleBOD=160°, then find angleBPD
Asked by mkmishra101
2nd March 2016,
6:12 PM
CBSE - IX - Mathematics - Quadrilaterals
E and F are respectively the mid points of non parallel sides AD, BC of a trapezium ABCD. Prove that EF || AB
Asked by Paresh
20th November 2015,
7:23 PM
CBSE - IX - Mathematics - Quadrilaterals
find the angle of a concave quatrilaterals with angle A =150, angleB=30 and angleC=37 find angle D
Asked by yogita
25th October 2015,
12:07 PM
CBSE - IX - Mathematics - Quadrilaterals
The area of rhombus is 72 cm2. If an altitude of the rhombus is half of the corresponding base,determine the measure of each side of the rhombus.
Asked by singhaivk05
11th March 2015,
8:37 PM
CBSE - IX - Mathematics - Quadrilaterals
Show that the line segments joining the mid points of opposite sides of a quardilateral bisect each other.
Asked by pkirankumar4321
23rd February 2015,
9:18 PM
CBSE - IX - Mathematics - Quadrilaterals
ABCD is a square and on the side DC, an equilateral triangle is constructed. Prove that (i) AE = BE and (ii) DAE = 15o
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - IX - Mathematics - Quadrilaterals
The angles of a quadrilateral are in the ratio 3 : 5 : 9 : 13. Find all the angles of quadrilateral.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - IX - Mathematics - Quadrilaterals
ABCD is a parallelogram. If DAB = 60o and DBC = 80o find CDB.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - IX - Mathematics - Quadrilaterals
The angles of a quadrilateral are in the ration 3 : 5 : 9 : 13. Find all the angles of the quadrilateral.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - IX - Mathematics - Quadrilaterals
Prove that the quadrilateral formed (if possible) by the internal angle bisectors of any quadrilateral is cyclic.
Asked by Topperlearning User
4th June 2014,
1:23 PM
