, (.1).
. 1
β, , .,
β= . (1)
, S , S S . / . (V = const) .
:
V = (a² + c² + ac); (2)
= a - 2 ctg β. (3)
(3) (2)
a = ctg β + .
b
b = ctg β.
2 b < a ctg β < 0.5 a.
,
S = 10 a ;
S = 4 * 10 (ab b 2);
S = 10 2 S = 10 (a - 2 b) .
k . (/) v (. ³/). , 1 , , 1 :
k .= S / S ;
v = V /1000 S .
, , , , , . , , () , . S = S + S , , S S , , , .
30 . 3
30 . ³
. 10 70 . ( .)
10 :
β = =20,04º;
b = 10 ctg 20,04º = 28 ;
a = 28 + = 1758 ;
= 1758- 2*28 = 1702 ;
S o= 10 * 1758 = 309 ;
|
|
S = 4 * 10 (1758*28 - 28 ) = 19 ;
S = 10 * 1702 = 290 ;
10, 20, 30, 40, 50, 60 70.
( 1).
1- 30 . ³
, | |||||||
β, º | 20,04 | 15,99 | 13,30 | 11,39 | 9,96 | 8,85 | 7,96 |
b, | |||||||
- a, | |||||||
- S , | |||||||
- S , | |||||||
S , |
(.2).
, S o min = 109 Ho min = 48 (Sp = 25,6 , So = 83,4 ). - v = 30*106/(1000* 109) = 275 . ³/; k . = 25,6/109= 0,235.
. .
. =74 ( : Sp = 0), So = Soo = 122,5 .
. 2. , , .