In a
triangle ABC, the median BD is such
that the angles A and DBC are equal. If the measure of the angle ADB is 45 degrees,
find the measure of angle A. Try to use
elementary geometry (Euclid's Elements.)
See solution below
See
also:
Triangles
Median
Congruence
Circle Geometric Art 01
Stereographic projection of Machu Picchu
Kaleidoscope of Geometry Problem 1 based on Poincare Disk Model
Poster and Typography of problem 1
Geometric Art of problem 1
Mind Map: George Pólya's 1945 book,
"How to Solve It"
George Pólya's 1945 book "How to Solve It, A new aspect of
Mathematical Method", is a book describing methods of problem
solving. It suggests the following steps when solving a
mathematical problem: (1) First, you have to understand the
problem. (2) After understanding, then make a plan. (3) Carry
out the plan. (4) Look back on your work. How could it be
better?
A mind map is a diagram used to visually organize information, knowledge, concepts or ideas.
