Question

Range of possible areas for triangle with all side lengths between 1 and 2 units (inclusive)

score 153 · Answer 1 · 2016-10-14 07:42:27

153

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Range of possible areas for triangle with all side lengths between 1 and 2 units (inclusive)

Published on 14 Oct 2016 - 7:42

score 443 · Answer 2 · 2016-10-14 10:40:08

443

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If $S$ is the circumcentre of $\triangle ABC$ prove that $\angle BSD=\angle BAC$ where $D$ is the midpoint of $BC$

Published on 14 Oct 2016 - 10:40

score 805 · Answer 3 · 2026-03-29 18:37:23

805

Views

In isosceles $\triangle ABC$, $X$ is any point on $BC$. $P$ and $Q$ are the circumcentres of $\triangle ABX$ and $ACX$. Prove $APXQ$ is parallelogram.

Published on 29 Mar 2026 - 18:37

score 419 · Answer 4 · 2026-03-28 10:34:59

419

Views

Find unknown angles of a triangle!!!

Published on 28 Mar 2026 - 10:34

score 544 · Answer 5 · 2016-10-14 17:33:17

544

Views

How can I make a parallelogram using a copy of a triangle?

Published on 14 Oct 2016 - 17:33

score 169 · Answer 6 · 2026-03-25 04:40:47

169

Views

How can I map the coordinate of a copied triangle in a parallelogram to the original triangle?

Published on 25 Mar 2026 - 4:40

score 82 · Answer 7 · 2016-10-15 04:08:10

82

Views

Having trouble using law of sines

Published on 15 Oct 2016 - 4:08

score 366 · Answer 8 · 2016-10-15 04:54:33

366

Views

Triangles of different size; determining the height difference

Published on 15 Oct 2016 - 4:54

score 276 · Answer 9 · 2026-04-06 14:04:15

276

Views

Internal angle bisectors and right-angled triangle?

Published on 06 Apr 2026 - 14:04

score 240 · Answer 10 · 2026-04-03 00:59:45

240

Views

What is the recurrence relation of generating triangle?

Published on 03 Apr 2026 - 0:59

score 333 · Answer 11 · 2016-10-16 09:42:56

333

Views

Triangle $ABC$, such that $\measuredangle A=120^{\circ}$. Find $\measuredangle BFC$.

Published on 16 Oct 2016 - 9:42

score 83 · Answer 12 · 2016-10-16 13:58:42

In the figure, $\Delta ABC$ is right-angled at $B$. $I$ is the incentre. $KI \perp CE $ and $JI \perp AI$. If $EK=DJ$, show that $AB=BC.$

score 49 · Answer 13 · 2016-10-17 20:07:08

49

Views

Prove that $AH<\frac{AB+AC}{2}$ in a triangle

Published on 17 Oct 2016 - 20:07

score 58 · Answer 14 · 2016-10-18 12:23:57

58

Views

Value of the 'height' of a triangle

Published on 18 Oct 2016 - 12:23

score 335 · Answer 15 · 2016-10-18 17:23:51

335

Views

Prove for Arbitrary Point $O$ inside $\triangle ABC$ we have $OA + OB + OC < AB + AC + BC$

Published on 18 Oct 2016 - 17:23

List Question

Range of possible areas for triangle with all side lengths between 1 and 2 units (inclusive)

If $S$ is the circumcentre of $\triangle ABC$ prove that $\angle BSD=\angle BAC$ where $D$ is the midpoint of $BC$

In isosceles $\triangle ABC$, $X$ is any point on $BC$. $P$ and $Q$ are the circumcentres of $\triangle ABX$ and $ACX$. Prove $APXQ$ is parallelogram.

Find unknown angles of a triangle!!!

How can I make a parallelogram using a copy of a triangle?

How can I map the coordinate of a copied triangle in a parallelogram to the original triangle?

Having trouble using law of sines

Triangles of different size; determining the height difference

Internal angle bisectors and right-angled triangle?

What is the recurrence relation of generating triangle?

Triangle $ABC$, such that $\measuredangle A=120^{\circ}$. Find $\measuredangle BFC$.

In the figure, $\Delta ABC$ is right-angled at $B$. $I$ is the incentre. $KI \perp CE $ and $JI \perp AI$. If $EK=DJ$, show that $AB=BC.$

Prove that $AH<\frac{AB+AC}{2}$ in a triangle

Value of the 'height' of a triangle

Prove for Arbitrary Point $O$ inside $\triangle ABC$ we have $OA + OB + OC < AB + AC + BC$

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