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Panjang diagonal suatu persegi adalah 3√6 cm, maka luas persegi tersebut adalah ... cm².

Rani Maharani

Soal

16. Panjang diagonal suatu persegi adalah 3√6 cm, maka luas persegi tersebut adalah ... cm².

Pembahasan

diagonal = s√2

3√6 = s√2

s = 3√(6/2)

s = 3√3 cm

Maka luas persegi dapat dihitung sebagai berikut:

L = s²

L = (3√3)²

L = 9 x 3

L = 27 cm²

Sehingga luas persegi tersebut adalah 27 cm².

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