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15
Math.TechQA.Club
2026-04-12 18:12:04
454
Views
Given $\triangle ABC$ with $\angle C = 60^\circ$, show $a^2+b^2-ab=c^2$ without trigonometry
Published on
12 Apr 2026 - 18:12
#geometry
#euclidean-geometry
#triangles
2.1k
Views
A line from a vertex of a triangle divides opposite side in a ratio,determine the ratio of areas?
Published on
10 May 2026 - 12:55
#geometry
#euclidean-geometry
#triangles
#area
#ratio
91
Views
3 Dimensional space
Published on
29 Apr 2026 - 14:38
#geometry
#euclidean-geometry
#convex-geometry
192
Views
Prove that three points in a rhombus are collinear
Published on
29 Apr 2026 - 12:43
#geometry
#euclidean-geometry
#analytic-geometry
#geometric-transformation
58
Views
What means the modular operator in that proof?
Published on
04 May 2026 - 23:45
#discrete-mathematics
#euclidean-geometry
#proof-explanation
#discrete-geometry
43
Views
Given $a,b,u \in \mathbb{C}$ such $u^2=ab$
Published on
12 Apr 2026 - 2:11
#geometry
#complex-numbers
#euclidean-geometry
1k
Views
Unable to get coordinates and angles on Ogee curve
Published on
14 Apr 2026 - 7:52
#geometry
#euclidean-geometry
335
Views
Scaling the normal vector of a triangle
Published on
10 May 2026 - 13:48
#geometry
#euclidean-geometry
#3d
528
Views
When are we supposed to use 'constructions' in mathematical geometery proofs?
Published on
05 May 2026 - 6:18
#geometry
#proof-writing
#euclidean-geometry
#proof-explanation
#geometric-construction
129
Views
Splitting $\mathbb{R}^n$ into two subspaces
Published on
05 May 2026 - 16:23
#euclidean-geometry
#connectedness
#dimension-theory-analysis
271
Views
Similarity of nested triangles
Published on
13 Apr 2026 - 11:19
#geometry
#vectors
#euclidean-geometry
#triangles
2.1k
Views
Find the Area a Kite Inscribed in a Circle
Published on
15 Apr 2026 - 3:06
#geometry
#euclidean-geometry
65
Views
I want to find the $\cos ({\hat{BCD}})$. However, I don't have any idea about how to. Can you assist?
Published on
03 May 2026 - 8:14
#geometry
#trigonometry
#euclidean-geometry
#triangles
#quadrilateral
67
Views
Inverse of triangle inequality
Published on
13 Apr 2026 - 11:48
#euclidean-geometry
21.6k
Views
Is there a formula to calculate the area of a trapezoid knowing the length of all its sides?
Published on
07 May 2026 - 7:35
#geometry
#euclidean-geometry
#area
#quadrilateral
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