Carilah keliling lingkaran berikut ini dengan menggunakan phi = 3,14 a. jari-jari 12 cm dan b. diame.... Question from @Ricalm

October 2018 2 23 Report

Carilah keliling lingkaran berikut ini dengan menggunakan phi = 3,14 a. jari-jari 12 cm dan b. diameter 15 cm

Cathean A) K = 2piR
K = 2(3.14)(12cm)
K = 75.36 cm
b) K = 2piD / 2 =piD
K= (3.14)(15cm)
K = 47.1 cm

2 votes Thanks 2

erisena A. K = $2 \pi r^{2}$
   = 2 x 3,14 x 12
   = 75,36 cm

b. K = $\pi d$
   = 3,14 x 15
   = 47,10 cm

4 votes Thanks 4

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