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Recent questions tagged Quadrilaterals
0
votes
1
answer
If three angles of a quadrilateral are 90° each show that the given quadrilateral is a rectangle.
asked
Jul 17
in
Class VI Maths
by
navnit40
(
-4,325
points)
quadrilaterals
+1
vote
0
answers
ABCD is a parallelogram and who is the point of intersection of its diagonals AC and BD if the area of triangle body equals to 8 cm square then the area of the parallelogram is
asked
Nov 18, 2018
in
Class VIII Maths
by
Kvs
(
16
points)
quadrilaterals
+1
vote
1
answer
The diagonal ac and bd of a parallelogram abcd cuts at o and angle aoc is 65, angle oba is 40 then find angle obc
asked
Nov 7, 2018
in
Class VII Maths
by
Md Irfan
(
16
points)
quadrilaterals
+1
vote
0
answers
If two parallelogram PQAD and PQBC arw on the opposite sides of PQ prove that ABCD is a paralellogram
asked
Oct 5, 2018
in
Class IX Maths
by
ManasR
(
9
points)
quadrilaterals
0
votes
1
answer
The area of parallelogram ABCD is 25cm2 ,What is the area of △ABC?
asked
Sep 22, 2018
in
Class IX Maths
by
aditya23
(
-1,619
points)
quadrilaterals
+1
vote
2
answers
What is the area of trapezium ?
asked
Sep 22, 2018
in
Class IX Maths
by
aditya23
(
-1,619
points)
quadrilaterals
0
votes
1
answer
In Fig.9.6, ABCD is a parallelogram and P is the point of intersection of its diagonals AC and BD. If the area of △APB is 10cm2 ,then find the area of parallelogram ABCD.
asked
Sep 22, 2018
in
Class IX English
by
aditya23
(
-1,619
points)
quadrilaterals
+1
vote
1
answer
l,m and n are three parallel lines intersected by transversal p and q such that l,m and n cut-off equal intersepts AB and BC on p (Fig.8.55). Show that l,m and n cut - off equal intercepts DE and EF on q also.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
+1
vote
1
answer
PQ and RS are two equal and parallel line segments.Any points M not lying on PQ or RS is joined to Q and S and lines through P parallel to SM meet at N.Prove that line segments MN and PQ are equal and parallel to each other.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
+2
votes
1
answer
In Fig. 8.53,ABCD is a parallelogram and E is the mid - point of AD. A line through D, drawn parallel to EB, meets AB produced at F and BC at L.Prove that (i) AF = 2DC (ii) DF = 2DL
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
+1
vote
1
answer
E and F are respectively the mid-points of the non-parallel sides AD and BC of a trapezium ABCD. Prove that EF||AB and EF = 1/2 (AB +CD).
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
+1
vote
1
answer
AD is the median that of △ABC. E is mid-point of AD. BE produced to meet AC at F. Show that AF =1/3AC.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
+1
vote
1
answer
In a parallelogram ABCD, the bisector of ∠A also bisects BC at X.Prove that AD = 2AB.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
0
votes
1
answer
Prove that the line segment joining the mid-points of the diagonals of a trapezium is parallel to the parallel sides and equal to half of their difference.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
+1
vote
1
answer
ABCD is a parallelogram in which P and Q are the mid-points of opposite sides AB and CD (Fig. 8.48). If AQ intersects DP at S and BQ intersects CP at R, show that
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
+2
votes
1
answer
Show that if the diagonals of a quadrilateral are equal and bisect each other at right angles, then it is a square.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
+1
vote
1
answer
Two parallel lines l and m are intersected by a transversal p (see Fig. 8.46). Show that the quadrilateral formed by the bisectors of interior angles is a rectangle.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
0
votes
1
answer
Prove that the bisector of the angles of a parallelogram enclose a rectangle.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
+1
vote
1
answer
Prove that the figure formed by joining the mid-points of the adjacent sides of a quadrilateral is a parallelogram.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
0
votes
1
answer
Prove that the diagonal divides a parallelogram into two congruent triangles.
asked
Sep 22, 2018
in
Class IX Maths
by
muskan15
(
-3,295
points)
quadrilaterals
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