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= 16 + 16
= 32 akar kuadrat
= 5,65cm
luas = 8x8:2
= 64 : 2
= 32 cm
b. kll = 5,65 x 4
= 22,6cm
semoga membantu (^_^)
8 = s√2
s = 8
----
√2
s = 8 × √2
--- ----
√2 √2
s = 4√2 cm
Luas persegi = s × s
= 4√2 × 4√2
= 16 × 2
= 32 cm²
Keliling persegi = 4 × s
= 4 × 4√2
= 16√2 cm