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1/2 d1 d2 = 64
d1 d2 = 64 * 2
d1 d2 = 128
2x * x = 128
2x² = 128
x² = 128 / 2
x² = 64
x = √64
x = 8
panjang diagonal 1 = 8 * 2 = 16 cm
panjang diagonal 2 = 8 * 1 = 8 cm
panjang sisi = √8² + 4²
= √64+16
= √80
= √16.√5
= 4√5 cm
1/2 x 2a x a = 64
a² = 64
a = 8
2a = 16
4² + 8² = 16 + 64 = 80
sisi =
= 4
diagoanlnya = 8 cm dan 16 cm
sisi = 4 akar 5