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100 = 4s
25 = s
b = d₁ : 2
= 48 cm : 2
= 24 cm
c = s
= 25 cm
a² + b² = c²
a² = c² - b²
a² = 25² - 24²
a² = 625 - 576
a² = 49
√a² = √49
a = 7
d₂ = a × 2
= 7 cm × 2
= 14 cm
L = 1/2 × d₁ × d₂
= 1/2 × 48 cm × 14 cm
= 24 cm × 14 cm
= 336 cm²
panjang sisi=100/4=25
panjang diagonal lain
24, 25, 7 (triple phytagoras, angka 24 dari 48/2)
=7.2=14 (karena 7 adalah setengah diagonal)
Luas
1/2.d1.d2
=1/2.48.14
=48.7
=336cm^2