Question

Proszę o szybką odpowiedź ​

Answer 1

Verified answer

1.

P=

[tex] p = \frac{(a + b) \times h}{2} [/tex]

a)

[tex] \frac{(2 + 3) \times 1.5}{2} = \frac{5 \times 1.5}{2} = \frac{7.5}{2} = 3.75[/tex]

b)

[tex] \frac{(4 + 2.5) \times 1}{2} = \frac{6.5 \times 1}{2} = 3.25[/tex]

c)

[tex] \frac{(1 + 2) \times 3}{2} = \frac{3 \times 3}{2} = \frac{9}{2} = 4.5[/tex]

2.

a) nie widac ile cm ma ten trojkat po lewej

b)

[tex] \frac{(4 + 6) \times 4}{2} = \frac{10 \times 4}{2} = \frac{10 \times 2}{1} = 20[/tex]

c)

[tex] \frac{(4 + 7) \times 6}{2} = \frac{11 \times 6}{2} = \frac{11 \times 3}{1} = 33[/tex]