2 Oblicz pole trójkąta. a) b) 4 cm 6,5 cm 1,5 cm 2,5 cm 6 cm 6 cm А

[tex] \huge{ \frac{a \times h}{2} }[/tex]
a)
[tex] \frac{6 \times 1.5}{2} = \frac{9}{2} = 4.5 {cm}^{2} [/tex]
b)
[tex] \frac{6 \times 2.5}{2} = \frac{15}{2} = 7.5 {cm}^{2} [/tex]
Odpowiedź:
a) P = [tex]\frac{1}{2}[/tex] * a * h
P = [tex]\frac{1}{2}[/tex] * 6cm * 1,5cm
P = 3cm * 1,5cm
P = 4,5[tex]cm^{2}[/tex]
b) P = [tex]\frac{1}{2}[/tex] * a * h
P = [tex]\frac{1}{2}[/tex] * 6cm * 2,5cm
P = 3cm * 2,5cm
P = 7,5[tex]cm^{2}[/tex]