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d2 = 5x
L = 1/2 d1 . d2
250 = 1/2 . 4x . 5x
250 = 2x . 5x
250 = 10x²
25 = x²
5 = x
d1 = 4x = 4 . 5 = 20 cm
d2 = 5 . 5 = 25 cm
luas belah ketupat = D1 x D2
2
250 = 4a x 5a
2
500 = 20a kuadrat
500 = a kuadrat
20
25 = a kuadrat
5 cm = a
D1 = 4a
= 4 x 5 cm = 20 cm
D2 = 5a
= 5 x 5 cm = 25 cm
maaf kalau salah, terima kasih