Pembahasan ESPS Kelas 6 Latihan 2 Halaman 70

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Minggu, 4 Okt 2020 14:47 0 2008 admin

$1a.K = 2 \Pi r= 2 \times \frac{22}{7}\times7= 44 cm$ $1b.K = 2 \Pi r= 2 \times 3,14 \times20 = 125,6 cm$ $1c.K = 2 \Pi r= 2 \times \frac{22}{7} \times21 = 132 cm$ $2a. diameter =\frac{K}{\Pi }=\frac{44}{\frac{22}{7}}= 44 \times \frac{7}{22}= 14 cm$ $2a. diameter =\frac{K}{\Pi }=\frac{132}{\frac{22}{7}}= 132 \times \frac{7}{22}= 42 cm$ $2c. diameter =\frac{K}{\Pi }=\frac{125,6}{3,14}= 40 cm$ $2d. diameter =\frac{K}{\Pi }=\frac{110}{\frac{22}{7}}=110\times \frac{7}{22}= 35 cm$ $2e. diameter =\frac{K}{\Pi }=\frac{314}{3,14}= 100 cm$ $2f. diameter =\frac{K}{\Pi }=\frac{880}{\frac{22}{7}}=880\times \frac{7}{22}= 280 cm$

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