# Pembahasan ESPS Kelas 6 Latihan 2 Halaman 70

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