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trapez
(6+8)*2/2=14
prostokat
2*1,6=3,2
3*1=3
3,2+3=6,2
4*8=32
32-6,2=25,8
pole
25,8+14=39,8
b)
trojkaty
(3*2)/2=3
3*2=6
prostokat
3*6=18
pole
18-6=12
c)
prostokat (duzy)
28*48=1344
prostokat (maly)
20*40=800
1344-800=544 (ramka)
trojkaty
(4*4)/2=8
8*4=32
pole
544-32=512
d) strzalka ^
(30*15)/2=225
(15*15)/2=112,5
112,2*2=225
reszta |
trojkat = (10*5)/2=25
prostokat = 15*10=150
pole
225+225+25+150=625