a, b -
d -
(R):
a -
c -
b -
d -
h -
p= (a+d+c)/2
, (R)
a -
d -
(R):
a -
N -
, (R):
: |
12
a, b - d -
(R):
a - c - b - d - h - p= (a+d+c)/2
, (R)
a - d -
(R):
a - N -
, (R):
: 2015-08-18; !; : 447 | : : , . |