Skip to main content
Limestone's user avatar
Limestone's user avatar
Limestone's user avatar
Limestone
  • Member for 3 years, 6 months
  • Last seen this week
7 votes
Accepted

Construction of symmedians but different.

6 votes

How can I prove this property of an ellipse?

5 votes
Accepted

In $\triangle{ABC}$, $\angle ABC=45^ \circ$. $X$ is a point on $BC$ such that $BX=\frac{1}{3}BC$ and $\angle AXC=60^ \circ$. Find $\angle ACB$.

4 votes
Accepted

Finding the area of a triangle formed by the centers of circumscribed circles of a big triangle

4 votes
Accepted

Prove that $ABCD$ is a trapezoid

4 votes
Accepted

Geometrical proof for property of chord of contact with a circle

3 votes
Accepted

How to get the distance between two anchoring points in a tv mast?

3 votes
Accepted

An Olympiad Geometry problem with incenter configurations.

3 votes

Isogonality in a complete quadrilateral

3 votes

$\overline{xy8}$ is divisible by 7. Find the remainder of $10x + 15y + 21$ divided by $7$.

3 votes
Accepted

Given tangents from A and C, find minimum length of AC

3 votes

Finding complex number for intersection of a line and a circle?

3 votes

Parallelism of two lines in a triangle

3 votes
Accepted

proving an equality in euclidean geometry

3 votes
Accepted

Length of lines related to orthocenter

3 votes

Proving a condition of perpendicularity

3 votes
Accepted

A challenging problem in Geometry related to finding a reciprocal relationship between AM,AB and AC

2 votes

What is the value of the $\measuredangle x$ in the figure below?

2 votes
Accepted

Find the angle x formed in the figure below

2 votes
Accepted

Find the $PMC$ angle in the construction below

2 votes

Geometry problem from RMO 2016

2 votes
Accepted

What's the measure of $\angle x$ in thefigure below?

2 votes

Find angle between diagonal of a quadrilateral knowing two sides are equal.

2 votes
Accepted

A basic geometry problem involving circles

2 votes

Square and Quarter Circle

2 votes

Angle of triangle

2 votes
Accepted

how to find this angle inside a quadrilateral

2 votes

Triangles in a cyclic quadrilateral

2 votes

Chord in Orthogonal Circles

2 votes

Calculate the measure in degrees of the acute angle formed by $ NMA $?