February 2019 1 50 Report
Bangun layang-layang di bawah ini dibentuk dari dua segitiga yang kongruen, segitiga PSR dan segitiga PQR. Jika SQ = 12 cm dan RT = 8 cm, maka keliling layang-layang adalah...
A
4,5 cm

B
7,5 cm

C
25 cm

D
35 cm
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