Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
Already signed up?
New to KöMaL?
I want the old design back!!! :-)

Problem K. 439. (December 2014)

K. 439. Each side of the figure in the diagram is 10 cm long, and each interior angle is \(\displaystyle 30^\circ\), \(\displaystyle 60^\circ\), \(\displaystyle 150^\circ\), or \(\displaystyle 300^\circ\). Find the area of the figure.

(6 pont)

Deadline expired on January 12, 2015.


114 students sent a solution.
6 points:75 students.
5 points:10 students.
4 points:11 students.
3 points:6 students.
2 points:3 students.
1 point:1 student.
Unfair, not evaluated:8 solutions.

Problems in Mathematics of KöMaL, December 2014