top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

If in a triangle ABC: Cos A + Cos B + Cos C = 3/2 then what is so special about this triangle?

0 votes
439 views

If in a triangle ABC:
Cos A + Cos B + Cos C = 3/2
then what is so special about this triangle?

posted Jul 23, 2016 by anonymous

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes

special about this triangle is that may be it's equilateral triangle , i.e cos60+cos60+cos60=3/2

answer Jul 24, 2016 by Shahsikant Dwivedi



Similar Puzzles
0 votes
If P=Sin A.Sin B, Q= Sin C.Cos A, R = Sin A.Cos B and S=Cos A.Cos C then 5(P^2+Q^2+R^2+S^2) = ??

If
P=Sin A.Sin B,
Q= Sin C.Cos A,
R = Sin A.Cos B and
S=Cos A.Cos C
then
5(P^2+Q^2+R^2+S^2) = ??

...