Tentukan jari jari lingkarana. Diameter 56cm.b. Diameter 17cm​

Jawaban:

a. diameter 56 cm = 56 ÷ 2 = 28 cm

b. diameter 17 cm = 17 ÷ 2 = 8,5 cm

jari jari = diameter : 2

a. diameter = 56 cm

jari jari = 56:2 =28 cm

jari jari = diameter : 2

b. diameter = 17 cm

jari jari = 17 :2 =8,5 cm