-6
, , , . . 
, 
. , , , dt.
, , . .
dj ( 6.1). h, ,
.
, dj , (). .
. d A 
:
,
a i .
, dj O,
,
O. , .
, . : ; ; ; ; ; . , .
: , :
,
i - .
-6
, 6.2, 
. 6.1. a = 30, b = 45. , 
, .
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6.1 -6
| , | Q, | M, × | ||||
| AO | AB | BC | BO 1 | |||
6.1
Q = 150 = 100 × ( 6.3). : AO = AB = 60 , BC = 30, BO 1 = 50 . , , .
1 (. 6.3). , . : 
; M; 
; 
; 
; 
.
6.3
2 . 1 ( AO) , O. O dj1. 2 ( AB) . , () 2, . A 
AO. B 3, . 3 ( P 3) . B 
BP 3. A B . 2 ( P 2). 2 dj2 P 2. 3 dj3 P 3.
|
|
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. C, 
, CP 2. O 1, , O 1 P 3. O P 3 .
3 . , .
.
. , . P 3 . , 
. O 1. , . :
. (6.1)
, .
.
.
;
.
a 
(. 6.3). ABO (AO = AB). Ð OAB = 120, Ð ABO = 30, Ð P 2 AB = 60. BO 1 P 3 (BO 1 = O 1 P 3), Ð BO 1 P 3 = 120. Ð O 1 P 3 B = 30, Ð P 2 BO = 60, Ð P 2 BA = 30. , ABP 2 (Ð AP 2 B = 90). ABP 2 :
AP 2 = AB ×sin30 = 0,6×0,5 = 0,3 .
ACP 2 (AC = AB BC = AP 2, Ð CAP 2 = 60), Ð ACP 2 = 60. a Ð ACP 2 . , a = 60
.
(6.1).
. (6.2)
4 (6.2) dj1 ( ). A dj1 (
) dj1 (
).
.
C
. (6.3)
ACP 2 AC CP 2 CP 2 = AC = 0,3 ().
2 3 B. dj2 (
) dj3 (
). ,
.
BP 2 ABP 2. 
. BP 3 BO 1 P 3
O 1 
. dj2
. (6.4)
BO 1 P 3 O 1 P 3 BO 1 O 1 P 3 = BO 1 = 0,5 (). (6.3) (6.4) (6.2)
. (6.5)
5 . (6.5) dj1 F.
.
