1. oblicz obwod kola ktorego pole wynosi p=144 TT
2. Oblicz pole koła , ktorego obwód wynosi l=18TT
dam najj
1.
144 TT = TTr² /:TT
r² = 144
r = √144
r = 12
O = 2TTr
O = 2 * TT * 12
O = 24TT
2.
2TTr = 18TT /:TT
2r = 18 /:2
r = 9
P = TTr²
P = TT9²
P = 81TT
POZDRAWIAM ; - ))
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1.
144 TT = TTr² /:TT
r² = 144
r = √144
r = 12
O = 2TTr
O = 2 * TT * 12
O = 24TT
2.
2TTr = 18TT /:TT
2r = 18 /:2
r = 9
P = TTr²
P = TT9²
P = 81TT
POZDRAWIAM ; - ))