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Mencari x:
CD/PQ = AB/RS
x/21 = 10/15
x/21 = 2/3
3x = 21(2)
x = 42/3
x = 14 cm
Mencari y:
AB/RS = AD/QR
10/15 = 12/y
2/3 = 12/y
2y = 3(12)
y = 36/2
y = 18 cm
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Verified answer
Trapesium sebangun
Mencari x:
CD/PQ = AB/RS
x/21 = 10/15
x/21 = 2/3
3x = 21(2)
x = 42/3
x = 14 cm
Mencari y:
AB/RS = AD/QR
10/15 = 12/y
2/3 = 12/y
2y = 3(12)
y = 36/2
y = 18 cm