October 2018 1 81 Report
Dua buah lingkaran yang berpusat di a dan b masing-masing berjari-jari 14cm dan 6cm. panjang garis singgung persekutuan luar lingkaran 15cm. jarak ab adalah...
a. 17cm
b. 20cm
c. 24cm
d. 25cm
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