Bidang studi:
MatematikaPenulis:
johnathanDibuat:
1 tahun laluK = 2 × pi × r
132 cm = 2 × 22/7 × r
66 cm = 22/7 × r
r = 66 cm × 7/22
r = 21
.
L = pi × r²
L = 22/7 × 21²
L = 22/7 × 441
L = 1.386 cm²
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jairofr5u
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