October 2018 1 47 Report
Sebuah pensil berada 15 cm di depan cermin cembung. Jika diketahui titik fokus cermin cembung 10 cm, jarak bayangan pensil tersebut adalah ….

a.30 cm di depan cermin
b.30 cm di belakang cermin
c.6 cm di belakang cermin
d.6 cm di depan cermin
tolong dijawab dengan caranya ya terimakasi
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