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

2 Oblicz Pole Trójkąta A B 4 Cm 65 Cm 15 Cm 25 Cm 6 Cm 6 Cm А class=

Odpowiedź :

[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]