a)
Pole
[tex] \frac{(4 + 2) \times 2}{2} = \frac{6 \times 2}{2} = 6 {cm}^{2} [/tex]
b)
[tex] \frac{(3.7 + 2.5) \times 4.3}{2} = \frac{6.2 \times 4.3}{2} = 3.1 \times 4.3 = 13.33 {cm}^{2} [/tex]
c)
[tex] \frac{(3 + 2) \times 4}{2} = \frac{5 \times 4}{2} = \frac{20}{2} = 10 {cm}^{2} [/tex]
Odpowiedź:
Szczegółowe wyjaśnienie:
a) [tex]\frac{(4+2)x2}{2}[/tex]=6cm²
b) [tex]\frac{(3,7+2,5)x4,3}{2}[/tex]=[tex]\frac{26,66}{2}[/tex]=13,33cm²
c) [tex]\frac{(3+2)x4}{2}[/tex]=5·2=10cm²
