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Verified answer
#1aV = 22/7 × r^2 × 36
88.704 = 22/7 × r^2 × 36
88.704 / 36 = 22/7 × r^2
2.464 = 22/7 × r^2
2.464 × 7 / 22 = r^2
784 = r^2
r = √784
r = 28 cm
#1b
= 22/7 × 56 × 36
= 6336 cm^2
#2
Panjang jari-jari yang mungkin:
= √(3.600 / 36)
= √100
= 10 cm
Tinggi tabung yang mungkin:
= 36 cm