(1 : 2 : √3)
QS = 10 cm
RS = 10 cm : 2
RS = 5 cm
QR = 5 x √3
QR = 5√3 cm
Luas PQRS = Panjang x Lebar
Luas PQRS = QR X RS
Luas PQRS = 5√3 cm x 5 cm
Luas PQRS = 25√3 cm² (A) ✓
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(1 : 2 : √3)
QS = 10 cm
RS = 10 cm : 2
RS = 5 cm
QR = 5 x √3
QR = 5√3 cm
Luas PQRS = Panjang x Lebar
Luas PQRS = QR X RS
Luas PQRS = 5√3 cm x 5 cm
Luas PQRS = 25√3 cm² (A) ✓