Jawab:C. 22 cm
Penjelasan:KesebangunanAE : AD = (AD+BD) : (AE+CE)8 : 12 = (12+8) : (8+CE)maka8 : 12 = 20 : (8+CE)(8/4) : (12/4) = 20 : (8+CE)2 : 3 = 20 : (8+CE)Ditanya CE2 : 3 = 20 : (8+CE)2(10) : 3(10) = 20 : (8+CE)20 : 30 = 20 : (8+CE)30 = 8 + CECE = 30 - 8CE = 22 (cm)
(xcvi)
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Jawab:
C. 22 cm
Penjelasan:
Kesebangunan
AE : AD = (AD+BD) : (AE+CE)
8 : 12 = (12+8) : (8+CE)
maka
8 : 12 = 20 : (8+CE)
(8/4) : (12/4) = 20 : (8+CE)
2 : 3 = 20 : (8+CE)
Ditanya CE
2 : 3 = 20 : (8+CE)
2(10) : 3(10) = 20 : (8+CE)
20 : 30 = 20 : (8+CE)
30 = 8 + CE
CE = 30 - 8
CE = 22 (cm)
(xcvi)