10 dość trudnych zadań z 3 gimnazjum!
14.
1/4
15.
(18 x H):2 = 45
9h = 45
h = 5
h = r
\pi r^{2} = \pi 5^{2} = 25 \pi ^{2}
16. 29
17.
śliwy - 7
grusze - 12
12- 7 = 5
odp. 5
18. c
reszte zaraz dam
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14.
1/4
15.
(18 x H):2 = 45
9h = 45
h = 5
h = r
\pi r^{2} = \pi 5^{2} = 25 \pi ^{2}
16. 29
17.
śliwy - 7
grusze - 12
12- 7 = 5
odp. 5
18. c
reszte zaraz dam