plis di jawab MTK ......
Jawaban:
4. B
AC/CE = AB/DE
10/CE = 6/4
CE = (4x10)/6= 6.67cm
maka AE = AC - CE = 10 - 6,67 = 3,33 cm
5. B
PR/PT = QR/ST
ST = (PT x QR)/PR
ST = (5 x 6)/8 = 3,75 cm
6. A
[tex]ps \: = \sqrt{ {pt}^{2} + {st}^{2} } \\ ps \: = \sqrt{ {5}^{2} + {3.75}^{2} } = 6.25cm[/tex]
7. B
PQ/PS = PR/PT
PQ = (PR x PS)/PT
PQ = (8x6,25)/5 = 10cm
SQ = PQ - PS = 10 - 6,25 = 3,75 cm
8. A
QR = (BC x AQ) / AB
QR = (8x9)/6 = 12cm
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