Uniwersytet Przyrodniczy we Wrocławiu
Temat: Pole powierzchni
IiGW, Grupa 3
Steciuk Dorota
Temat 135
Nr |
X |
Y |
H |
1 |
2965,66 |
5016,02 |
127,2 |
2 |
3166,17 |
5073,91 |
124,7 |
3 |
3204,76 |
5332,24 |
129,4 |
4 |
2944,39 |
5403,19 |
122,1 |
5 |
2999,73 |
5202,66 |
125,5 |
Metoda analityczna:
1)
2P=131701,4049 /:2
P = 65850,70245 m2
2)
-
-2P=131712,0399 /:(-2)
P = 65856,01995 m2
Metoda graficzna:
P
= P1
+ P2
+ P3
P1
=
* a * h
P1
=
* 189 * 186
P1
= 16443 m2
P2
=
* a * h
P2
=
* 266 * 184
P2
= 24472 m2
P3
=
* a * h
P3
=
* 207 * 234
P3
= 24219 m2
P
= 16443+24472+24219 = 65134m2
b)
P = P1
+ P2
+ P3
WZÓR
HERONA:
PTRÓJ.
=
gdzie: p =
p1
=
= 304,85
P1
=
=
=
= 17756,4735 m2
p2
=
= 361,75
P2
=
=
= 24555,77 m2
p3
=
= 360,25
P3
=
=
= 24174,7378 m2
P=
17756,4735+24555,77+24174,7378=66486,9813
m2
Sprawdzenie:
65856,01995 * 0,01=658,56
66486,9813-65856,01995= 630,96125