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Verified answer
T = 8 cmr = 7 cm
A) Luas alas tabung
= π x r²
= 22/7 x 7 cm x 7 cm
= 154 cm²
B) Luas selimut tabung
= 2 x π x r x t
= 2 x 22/7 x 7 cm x 8 cm
= 352 cm²
b) luas selimut tabung : 2πrt = 2 × 22/7 × 7 × 8 = 352 cm2