LP = 2πr(r + t)
..
LP
2 × 22/7 × 21(21 + 32)
44/7 × 7(53)
44/7 × 371
= 2332 cm²
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at}}[/tex]
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LP = 2πr(r + t)
..
LP
2 × 22/7 × 21(21 + 32)
44/7 × 7(53)
44/7 × 371
= 2332 cm²
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at}}[/tex]