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inequation of sinuses of triangle's angles

score 53 · Answer 1 · 2026-04-16 22:21:47

53

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inequation of sinuses of triangle's angles

Published on 16 Apr 2026 - 22:21

score 1.6k · Answer 2 · 2026-04-11 14:40:16

1.6k

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Reflecting ray on triangle in 3D space

Published on 11 Apr 2026 - 14:40

score 993 · Answer 3 · 2026-04-13 10:51:55

993

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given area of a triangle, minimum value of its perimeter stack exchange

Published on 13 Apr 2026 - 10:51

score 86 · Answer 4 · 2026-04-11 00:13:18

86

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In $\triangle ABC$, $|PA| \le |PB| + |PC|$

Published on 11 Apr 2026 - 0:13

score 111 · Answer 5 · 2026-04-16 10:45:22

111

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If triangle's angles are $\alpha \leq \beta \leq \gamma$, then respective opposite sides are $a \leq b \leq c$. How to handle obtuse case?

Published on 16 Apr 2026 - 10:45

score 1k · Answer 6 · 2026-04-14 10:52:26

1k

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Find incentre of a complex triangle?

Published on 14 Apr 2026 - 10:52

score 2.8k · Answer 7 · 2026-04-28 12:48:27

2.8k

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$P$ and $Q$ are two points on the line $x-y+1=0$ and are at distance $5$ from the origin. Find the area of triangle $OPQ$

Published on 28 Apr 2026 - 12:48

score 342 · Answer 8 · 2026-04-11 04:50:46

342

Views

Triangle properties from vectors

Published on 11 Apr 2026 - 4:50

score 127 · Answer 9 · 2026-04-15 00:20:59

127

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$ABC$ be a triangle $R_a$, $R_b$, $R_c$ are the radii of Lucas Circles of $ABC$. Prove that:

Published on 15 Apr 2026 - 0:20

score 432 · Answer 10 · 2026-04-14 15:28:24

432

Views

Using areas to prove side ratios in a scalene triangle

Published on 14 Apr 2026 - 15:28

score 404 · Answer 11 · 2026-04-09 01:09:37

404

Views

prove: the sum of segments connecting a point inside a triangle with its vertices is smaller than the semiperimeter of the triangle

Published on 09 Apr 2026 - 1:09

score 275 · Answer 12 · 2026-04-16 03:41:32

275

Views

Triangles of the form $a^n+b^n=c^n$

Published on 16 Apr 2026 - 3:41

score 1.2k · Answer 13 · 2026-04-12 01:57:58

1.2k

Views

Why does a triangle have an interior angle of 180 degrees?

Published on 12 Apr 2026 - 1:57

score 75 · Answer 14 · 2026-04-13 02:31:39

75

Views

Finding two points B and C such that the perimeter of triangle ABC is minimal (an extension)

Published on 13 Apr 2026 - 2:31

score 1.9k · Answer 15 · 2026-04-14 17:41:23

1.9k

Views

How do I determine if measurements given for a triangle will produce one, two, or no triangles?

Published on 14 Apr 2026 - 17:41

List Question

inequation of sinuses of triangle's angles

Reflecting ray on triangle in 3D space

given area of a triangle, minimum value of its perimeter stack exchange

In $\triangle ABC$, $|PA| \le |PB| + |PC|$

If triangle's angles are $\alpha \leq \beta \leq \gamma$, then respective opposite sides are $a \leq b \leq c$. How to handle obtuse case?

Find incentre of a complex triangle?

$P$ and $Q$ are two points on the line $x-y+1=0$ and are at distance $5$ from the origin. Find the area of triangle $OPQ$

Triangle properties from vectors

$ABC$ be a triangle $R_a$, $R_b$, $R_c$ are the radii of Lucas Circles of $ABC$. Prove that:

Using areas to prove side ratios in a scalene triangle

prove: the sum of segments connecting a point inside a triangle with its vertices is smaller than the semiperimeter of the triangle

Triangles of the form $a^n+b^n=c^n$

Why does a triangle have an interior angle of 180 degrees?

Finding two points B and C such that the perimeter of triangle ABC is minimal (an extension)

How do I determine if measurements given for a triangle will produce one, two, or no triangles?

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