Q

Jawaban:

B

Penjelasan dengan langkah-langkah:

π(r-2) + 2(r-2) = 24(3)

(r-2)(π + 2) = 72

(r-2)(22/7 + 14/7) = 72

(r-2)(36/7) = 72

(r-2) = 72/36 x 7

r – 2 = 2(7)

r = 2 + 14

r = 16 meter