Dzakwaan
32. Luas Permukaan = ( 2 x Luas Alas ) + ( Keliling Alas x Tinggi ) = ( 2 x P x L ) + ( ( 2 x (P+L) ) x T ) = ( 2 x 12 x 9 ) + ( ( 2 x (12+9) ) x 18 ) = ( 2 x 108 ) + ( ( 2 x 21 ) x 18 ) = 216 + ( 42 x 18 ) = 216 + 756 = 972 Cm²
34. Volume = P x L x T 12 k³ Cm³= p x l x 4k
Luas Alas = p x l = Volume / t = 12k x k x k / 4k = 3 k x k = 3 k² Cm² (C)
= ( 2 x P x L ) + ( ( 2 x (P+L) ) x T )
= ( 2 x 12 x 9 ) + ( ( 2 x (12+9) ) x 18 )
= ( 2 x 108 ) + ( ( 2 x 21 ) x 18 )
= 216 + ( 42 x 18 )
= 216 + 756
= 972 Cm²
34. Volume = P x L x T
12 k³ Cm³= p x l x 4k
Luas Alas = p x l
= Volume / t
= 12k x k x k / 4k
= 3 k x k
= 3 k² Cm² (C)