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Verified answer
Keliling = 52Sisi = 52:4 = 13
Diagonal 1 = 24
Diagonal 2 = (√13^2-12^2) x 2
= 5 x 2
= 10
Luas = (d1 x d2) : 2
= (24 x 10) : 2
= 120
Verified answer
Bangun DatarK = 4s
52 = 4s
s = 13 cm
Panjang sisi tengah yang membentuk segitiga siku-siku
= 1/2 x d1
= 1/2 x 24
= 12 cm
maka, setengah dari d2
= √13² - 12²
= √169 - 144
= √25
= 5 cm
sehingga,
d2 = 2 x 5
d2 = 10 cm
Luas belah ketupat
= 1/2 x d1 x d2
= 1/2 x 24 x 10
= 120 m²
Semoga Membantu!!!