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= × r²
= 22/7 × 35 × 35 × 1/2
= 11/1 × 5 × 35 × 1/1
= 55 × 35
= 1925 cm² (A)
27. dik = rusuknya : 40dm
yang terisi 3/4
= 40 × 40 × 40
= 64000 × 3/4
= 16.000 × 3
= 48.000 dm³ (D)
SORY KALAU SALAH