AB//CD,AB = 15 cm,CD = 20cm, BC=28cm .panjang CE adalah .... A.9cm B.12cm C.14cm D.16cm
Matematika
rahma1229
Pertanyaan
AB//CD,AB = 15 cm,CD = 20cm, BC=28cm .panjang CE adalah ....
A.9cm
B.12cm
C.14cm
D.16cm
A.9cm
B.12cm
C.14cm
D.16cm
1 Jawaban
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1. Jawaban AnugerahRamot
AB/CD = BE/CE
15/20 = (28-CE)/CE
3CE = 112 - 4CE
7CE = 112
CE=16 cm (D)