List questions from euclidean-geometry

Published on 07 Dec 2018 - 8:19

127

Views

Show that three point $G,H,G_1$ are collinear.

Published on 27 Mar 2026 - 16:22

286

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Did I apply the Ceva's theorem correctly to this problem?

Published on 28 Mar 2026 - 6:48

98

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these formulas only used for the right triangle?

Published on 28 Mar 2026 - 6:48

103

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Correlation between parallel lines and volumes of tetrahedrons.

Published on 09 Dec 2018 - 6:20

62

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Prove $AX$, $BY$, $CZ$ concur

Published on 27 Mar 2026 - 14:10

94

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How to express y in terms of x based on a diagram

Published on 10 Dec 2018 - 3:19

54

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Is there a flaw in this proof?

Published on 10 Dec 2018 - 6:34

139

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Ceva's Theorem: Proving lines in a specifically constructed triangle intersect

Published on 26 Mar 2026 - 1:01

436

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Homotheties: Let $A$ and $B$ be distinct points of a circle $o$. What is the set of possible centroids of triangles $ABC$ with $C\in o$?

Published on 11 Dec 2018 - 7:06

170

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Prove all points lie on a common circle

Published on 12 Dec 2018 - 1:53

277

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Let convex $\square ABCD$ have $\angle DAC=\angle ACD=17^\circ$; $\angle CAB=30^\circ$; and $\angle BCA = 43^{\circ}$. Compute $\angle ABD$.

Published on 12 Dec 2018 - 8:01

675

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Does the quadrilateral have an inscribed circle?

Published on 12 Dec 2018 - 8:26

105

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Find the line that is closest to 4 skew lines

Published on 25 Mar 2026 - 17:40

375

Views

Snub cube's angles

Published on 26 Mar 2026 - 3:11

List Question

Power of a point: Minimize the length of a chord of a circle containing A and B

Show that three point $G,H,G_1$ are collinear.

Did I apply the Ceva's theorem correctly to this problem?

these formulas only used for the right triangle?

Correlation between parallel lines and volumes of tetrahedrons.

Prove $AX$, $BY$, $CZ$ concur

How to express y in terms of x based on a diagram

Is there a flaw in this proof?

Ceva's Theorem: Proving lines in a specifically constructed triangle intersect

Homotheties: Let $A$ and $B$ be distinct points of a circle $o$. What is the set of possible centroids of triangles $ABC$ with $C\in o$?

Prove all points lie on a common circle

Let convex $\square ABCD$ have $\angle DAC=\angle ACD=17^\circ$; $\angle CAB=30^\circ$; and $\angle BCA = 43^{\circ}$. Compute $\angle ABD$.

Does the quadrilateral have an inscribed circle?

Find the line that is closest to 4 skew lines

Snub cube's angles

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