nomor 1
LP = 2πr ( r + t)
= 2 X 3,14 X 30 ( 30 + 30)
= 62,8 ( 60)
= 628 X 6
= 3768 cm²
nomor 2
LP = 2(pl + PT + Lt)
= 2(24.18 + 24.12 + 18.12)
= 2(432 + 288 + 216)
= 2(936)
= 1.872 cm²
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nomor 1
LP = 2πr ( r + t)
= 2 X 3,14 X 30 ( 30 + 30)
= 62,8 ( 60)
= 628 X 6
= 3768 cm²
nomor 2
LP = 2(pl + PT + Lt)
= 2(24.18 + 24.12 + 18.12)
= 2(432 + 288 + 216)
= 2(936)
= 1.872 cm²