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Triangles
New post in Triangles
Complex Numbers: Triangle and Centroid
November 5th, 2022
centroid
complex-numbers
triangles
Prove $\sin(A-B)/\sin(A+B)=(a^2-b^2)/c^2$
August 15th, 2022
trigonometry
triangles
Area of triangle with given coordinates of the vertices
July 22nd, 2022
triangles
area
geometry
If the sides of the Triangle are $a$, $b$ and $\sqrt{(a^2+ab+b^2)}$, then find the value of the greatest Angle.
August 1st, 2022
triangles
trigonometry
problem-solving
circumcentre of equilateral triangle
August 1st, 2022
triangles
geometry
coordinate-systems
Minimum Value of Triangle
August 1st, 2022
triangles
If in Triangle ABC, $\angle C=60°$, then prove that $\frac{1}{a+c} + \frac{1}{b+c} = \frac{3}{a+b+c}$
June 15th, 2020
triangles
Easy proof of the intercept theorem.
October 13th, 2020
triangles
geometry
euclidean-geometry
How big is the equilateral triangle inscribed in a triangle?
August 1st, 2022
triangles
trigonometry
euclidean-geometry
If a 16' ladder is placed correctly on a level surface, how high up will the ladder reach?
July 3rd, 2020
trigonometry
triangles
trigonometric-series
Determine if a triangle is right angled with only coordinates
August 1st, 2022
triangles
trigonometry
Cut A Shape Into Two Triangles
June 9th, 2020
geometry
triangles
3d geometry: triangle 2 points known, find 3rd point
January 10th, 2020
triangles
geometry
3d
Get the relation between X and Y axes in triangle based on the degree between
May 7th, 2020
geometry
trigonometry
circles
triangles
Equations of triangle sides through medians
July 12th, 2020
triangles
linear-algebra
geometry
GRE triangle area question
August 1st, 2022
geometry
triangles
gre-exam
Find the height of the dam given angles of a triangle
August 1st, 2022
algebra-precalculus
triangles
systems-of-equations
trigonometry
Rotation matrix of triangle in 3D
August 1st, 2022
triangles
rotations
geometry
Formula to calculate a side of triangle with given angle
May 8th, 2020
circles
triangles
Geometry/Programming- Draw An Equilateral Triangle Given One Point And A Desired Rotation
April 11th, 2020
rotations
triangles
geometry
Trigonometry: Find the side of a triangle within a triangle
February 11th, 2020
triangles
trigonometry
How can I calculate angles between objects at the sky?
November 23rd, 2020
triangles
polar-coordinates
Calculate the length of the sides of a triangle from the area and the angle
February 9th, 2020
triangles
trigonometry
Finding the radius of excircles from a right angled triangle
August 1st, 2022
pythagorean-triples
circles
triangles
How do you find the area of the shaded (gray) region of the square not getting overlapped by the circle or triangle
August 1st, 2022
angle
area
triangles
trigonometry
geometry
Coordinates of circumcentre of an isosceles triangle in 3D
January 19th, 2020
circles
euclidean-geometry
geometry
3d
triangles
How many different shapes can you construct with n equilateral triangles?
August 1st, 2022
triangles
combinatorics
geometry
Write down the iterated integral which expresses the surface area of z = y 6 cos3 x over the triangle with vertices (-1,1), (1,1), (0,2):
August 1st, 2022
triangles
integration
surface-integrals
area
Circumradius of a triangle
November 21st, 2020
triangles
geometry
How can I prove that DEF is an equilateral triangle?
August 1st, 2022
triangles
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