Question

How do you find 2 variables in a quadrilateral, only knowing the other two?

score 736 · Answer 1 · 2016-06-01 04:38:17

736

Views

How do you find 2 variables in a quadrilateral, only knowing the other two?

Published on 01 Jun 2016 - 4:38

score 1.9k · Answer 2 · 2016-06-03 13:00:42

1.9k

Views

Show that if AB+CD=AD+BC then the quadrilateral $ABCD$ is tangential

Published on 03 Jun 2016 - 13:00

score 63.6k · Answer 3 · 2016-06-03 16:45:20

63.6k

Views

In a parallelogram, does the diagonal bisect the angles that they meet?

Published on 03 Jun 2016 - 16:45

score 510 · Answer 4 · 2016-06-05 17:41:35

510

Views

proof that diagonals of a quadrilateral are perpendicular if $AB^2+CD^2=BC^2+AD^2$

Published on 05 Jun 2016 - 17:41

score 1.7k · Answer 5 · 2016-06-08 06:42:53

1.7k

Views

Given distances (shortest paths) between four cities, how to show that they cannot be in the same plane?

Published on 08 Jun 2016 - 6:42

score 199 · Answer 6 · 2016-06-08 15:40:24

199

Views

A triangle in a square

Published on 08 Jun 2016 - 15:40

score 140 · Answer 7 · 2016-06-08 16:04:56

140

Views

Convex quadrilateral with interior point

Published on 08 Jun 2016 - 16:04

score 57 · Answer 8 · 2016-06-08 20:08:37

57

Views

Find the measure of $DME$

Published on 08 Jun 2016 - 20:08

score 694 · Answer 9 · 2016-06-22 13:01:14

694

Views

Is one diagonal of a convex quadrilateral always longer than at least 3 sides?

Published on 22 Jun 2016 - 13:01

score 65 · Answer 10 · 2016-07-04 19:08:59

65

Views

Finding position of 2D point constrained by "parent" point constrained to circle and rotation

Published on 04 Jul 2016 - 19:08

score 6.4k · Answer 11 · 2013-03-31 19:08:38

6.4k

Views

What is the quadrilateral formed by the angle bisectors of a parallelogram?

Published on 31 Mar 2013 - 19:08

score 1.1k · Answer 12 · 2013-08-12 17:24:36

1.1k

Views

Trisect a quadrilateral into a $9$-grid; the middle has $1/9$ the area

Published on 12 Aug 2013 - 17:24

score 2.1k · Answer 13 · 2013-09-10 17:54:45

2.1k

Views

Finding the length of one side of cyclic trapezium if given length of two adjacent side and the diagonal between them.

Published on 10 Sep 2013 - 17:54

score 250 · Answer 14 · 2026-03-29 12:23:09

250

Views

Creating non self intersecting Quadrilaterals from 4 points

Published on 29 Mar 2026 - 12:23

score 26.5k · Answer 15 · 2013-10-19 14:06:08

26.5k

Views

Maximum area of a square in a triangle

Published on 19 Oct 2013 - 14:06

List Question

How do you find 2 variables in a quadrilateral, only knowing the other two?

Show that if AB+CD=AD+BC then the quadrilateral $ABCD$ is tangential

In a parallelogram, does the diagonal bisect the angles that they meet?

proof that diagonals of a quadrilateral are perpendicular if $AB^2+CD^2=BC^2+AD^2$

Given distances (shortest paths) between four cities, how to show that they cannot be in the same plane?

A triangle in a square

Convex quadrilateral with interior point

Find the measure of $DME$

Is one diagonal of a convex quadrilateral always longer than at least 3 sides?

Finding position of 2D point constrained by "parent" point constrained to circle and rotation

What is the quadrilateral formed by the angle bisectors of a parallelogram?

Trisect a quadrilateral into a $9$-grid; the middle has $1/9$ the area

Finding the length of one side of cyclic trapezium if given length of two adjacent side and the diagonal between them.

Creating non self intersecting Quadrilaterals from 4 points

Maximum area of a square in a triangle

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