December 2018 1 17 Report
Seorang tukang jam sedang memperbaiki jam tangan.dia menggunakan lup dalam jangka waktu lama.jika lup yg digunakan mempunyai fokus 10cm.dia akan melihat ukuran sekrup menjadi...................... kali semula
a. 1,5
b. 2
c. 2,5
d. 5
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