1.
a)
[tex] \frac{(a + b) \times h}{2} = \frac{(17 + 5) \times 8}{2} = \frac{22 \times 8}{2} = 11 \times 8 = 88[/tex]
Obwód
[tex]17 + 10 + 5 + 10 = 17 + 25 = 42[/tex]
b)
[tex]a \times h = 8 \times 5 = 40[/tex]
Obwód
[tex]6 + 8 + 6 + 8 = 12 + 16 = 28[/tex]
2.
a)
[tex] \frac{e \times f}{2} = \frac{4 \times 5}{2} = \frac{20}{2} = 10[/tex]
b)
[tex] \frac{a \times h}{2} = \frac{4 \times 4}{2} = \frac{16}{2} = 8[/tex]
c)
[tex]a \times h = 6 \times 2 = 12[/tex]
d)
[tex] \frac{(a + b) \times h}{2} = \frac{(5 + 2) \times 3}{2} = \frac{7 \times 3}{2} = \frac{21}{2} = 10.5[/tex]
Największe pole ma figura C
