Jawab:
Penjelasan dengan langkah-langkah:
a. L = phi x r^2
3850 = 22/7 x r^2
26950 = 22 x r^2
r^2 = 26950 : 22 = 1225
r = = 35 cm
b. K = 2 x phi x r
K = 2 x 22/7 x 35
K = 220 cm
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Jawab:
Penjelasan dengan langkah-langkah:
a. L = phi x r^2
3850 = 22/7 x r^2
26950 = 22 x r^2
r^2 = 26950 : 22 = 1225
r = = 35 cm
b. K = 2 x phi x r
K = 2 x 22/7 x 35
K = 220 cm