Question

Proof of inequality in triangle

score 104 · Answer 1 · 2026-03-26 06:34:29

104

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Proof of inequality in triangle

Published on 26 Mar 2026 - 6:34

score 313 · Answer 2 · 2019-12-29 17:38:30

313

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Sum of square distances from a point to the sides of a regular polygon

Published on 29 Dec 2019 - 17:38

score 51 · Answer 3 · 2026-03-29 11:43:30

51

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When does a right triangle with integral perimeter and area have rational sides?

Published on 29 Mar 2026 - 11:43

score 785 · Answer 4 · 2019-12-30 16:11:44

785

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Find how many parts are in a triangle

Published on 30 Dec 2019 - 16:11

score 753 · Answer 5 · 2026-03-23 03:34:19

753

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Guessing the third side of the triangle from the given two sides

Published on 23 Mar 2026 - 3:34

score 60 · Answer 6 · 2019-12-31 14:13:22

60

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A triangle geometry problem: Proof that $N$ is mid point of $AC$ (See the problem detailed in the body)

Published on 31 Dec 2019 - 14:13

score 87 · Answer 7 · 2020-01-01 09:15:56

87

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The sides of a triangle are $n$, $n-1$, and $n+1$, for natural $n$, and angles $A$, $2A$, $\pi-3A$. Find $n$.

Published on 01 Jan 2020 - 9:15

score 250 · Answer 8 · 2026-03-26 06:29:12

250

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Possibility of finding exact value of circle area

Published on 26 Mar 2026 - 6:29

score 174 · Answer 9 · 2020-01-02 01:52:30

174

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What is the area of a circle?

Published on 02 Jan 2020 - 1:52

score 61 · Answer 10 · 2020-01-02 12:26:35

61

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What is ratio of $BE : CE$?

Published on 02 Jan 2020 - 12:26

score 85 · Answer 11 · 2020-01-02 13:48:55

85

Views

prove that : $MN=PQ=AC$

Published on 02 Jan 2020 - 13:48

score 1.4k · Answer 12 · 2020-01-02 14:18:28

1.4k

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In $\triangle ABC$, if the altitude, median, and angle bisector at $A$ quadrisect $\angle A$, then $\angle A=90^\circ$ and $\angle C=22.5^\circ$

Published on 02 Jan 2020 - 14:18

score 97 · Answer 13 · 2020-01-02 15:16:57

97

Views

Prove that $AB=DA+BC$

Published on 02 Jan 2020 - 15:16

score 47 · Answer 14 · 2020-01-02 21:34:49

For convex $ABCD$, with $H\in AB$ and $G\in AD$ such that $CH\parallel AD$ and $CG\parallel AB$, and $E=BG\cap HD$, prove $S_{AHEG}=S_{HBCD}$

score 65 · Answer 15 · 2020-01-02 22:03:16

65

Views

A contest problem in geometry to find triangle ratio $EG$ to $GF$

Published on 02 Jan 2020 - 22:03

List Question

Proof of inequality in triangle

Sum of square distances from a point to the sides of a regular polygon

When does a right triangle with integral perimeter and area have rational sides?

Find how many parts are in a triangle

Guessing the third side of the triangle from the given two sides

A triangle geometry problem: Proof that $N$ is mid point of $AC$ (See the problem detailed in the body)

The sides of a triangle are $n$, $n-1$, and $n+1$, for natural $n$, and angles $A$, $2A$, $\pi-3A$. Find $n$.

Possibility of finding exact value of circle area

What is the area of a circle?

What is ratio of $BE : CE$?

prove that : $MN=PQ=AC$

In $\triangle ABC$, if the altitude, median, and angle bisector at $A$ quadrisect $\angle A$, then $\angle A=90^\circ$ and $\angle C=22.5^\circ$

Prove that $AB=DA+BC$

For convex $ABCD$, with $H\in AB$ and $G\in AD$ such that $CH\parallel AD$ and $CG\parallel AB$, and $E=BG\cap HD$, prove $S_{AHEG}=S_{HBCD}$

A contest problem in geometry to find triangle ratio $EG$ to $GF$

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