, 30 2017 . 00:17
+
, , :
, , - .
:
-
-
- , ...
- .
. , .
1) .
. !
24 26 - 1,17; 24 28 - 1,36; 24 30 - 1,56; 24 32 - 1,78.
26 24 - 0,85; 26 28 - 1,16; 26 30 - 1,33; 26 32 - 1,51.
28 24 - 0,73; 28 26 - 0,86; 28 30 - 1,15; 28 32 - 1,31.
30 24 - 0,64; 30 26 - 0,75; 30 28 - 0,87; 30 32 - 1,14.
32 24 - 0,56; 32 26 - 0,66; 32 28 - 0,77; 32 30 - 0,88.
.
:
28, , 32.
- 28 32, 1,31.
28:
300
100
200
32:
300 1,31 =393
100 * 1,31 =131
200 * 1,31 =262
:
- 32 24, 0,56.
32:
300
100
200
24:
300 * 0,56 =168
100 * 0,56 =56
200 * 0,56 =112
2. .
) →
, 42 x 29 .
30. - .
= 42 * 29 = 12182.
= ( ) „“ (≈3,14).
15 * 15 * 3,14 = 706,5 2
, 1218 2 ( ) ( ) - , 706,52 ( ) - , „“.
1218 2 = 100 %
706,5 2 = x
„“:
100 * 706,5 = 1218 * x
x = 100 * 706,5 : 1218
x = 58%
, - 30 – (≈58% ) - 42 x 29 .
) →
30. Ÿ = 15*15*3,14 = 706,5 2.
42 x 29 . Ÿ = 42 * 29 cm = 1218 2
:
706,5 2 = 100 %
1218 2 = x
x = 100 * 1218 : 706,5 = 172,39 %
, 42 x 29 72% , 30.
- :
-: 150
58% -: 150 * 0,58 = 87
+72% -: 150 * 1,72 = 258
, !
!
