Jawab:
Penjelasan dengan langkah-langkah:
17) 220 x 5000 = 1.100.000 cm = 11 km
18) 1,98 x 100.000 : 1000 = 198 cm
K = π D
198 = 3,14 D
D = 63,06 cm
19) L = 0,5 x π x r²
1232 = 0,5 x 3,14 x r²
r² = 784,71 cm
r = 28,01 cm
20) 880 : 0,56 = 1572 putaran
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Jawab:
Penjelasan dengan langkah-langkah:
17) 220 x 5000 = 1.100.000 cm = 11 km
18) 1,98 x 100.000 : 1000 = 198 cm
K = π D
198 = 3,14 D
D = 63,06 cm
19) L = 0,5 x π x r²
1232 = 0,5 x 3,14 x r²
r² = 784,71 cm
r = 28,01 cm
20) 880 : 0,56 = 1572 putaran