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40 = 4s
s = 40/4
s = 10 cm
1.B) L = 6×s²
= 6×10²
= 6×100
= 600 cm²
2.A) Lbd = 2r²
144 = 2r²
2r = √144
2r = 12
r = 12/2
r = 6cm
2.B) Vol = r³= 6³= 216 cm³
2.C) L = 6×s²
= 6×6²
= 6×36
= 216 cm²
maaf klw salah...