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2* 3/4 pola koła o promieniu 1 +1/4 p kola o promieniu 2 +5*2
P = 6/4*π + π + 10
P = 10/4π +10
P = 10+ 2,5π
Obw = 6/4 * 2π + 0,5 π + 3 + 5 +1 +1 +2 = 12+3,5π
2)
P=2*12 +7*1 +2,5*π*1=31+2,5π
Obw = 22 +2,5*2π*1 = 22+5π
3)
P=3/4*π*1 + 3/4*π*2,25 +2,5*3,5+1*1,5+0,5*1 = 0,75π + 1,6875π +8,75 +1,5 + 0,5(to to malutkie przy mniejszym kole) = 2,4375π + 10,75
Obw = 6/4π + 6/4 π *3/2 + 0,5+1+2+2+1+1,5+2 = 15/4π + 10 =10+3,75π
Pozdrawiam! :)