73 PENCERMINAN TERHADAP GARIS = − Video 2.7 Pencerminan Posisi Awal Posisi Akhir Terhadap A (1, 6) A’ (−5, 6) B (3, 4) B’ (−7, 4) Garis = −2 C (2, 2) C’ (−5, 2) D (1, 2) D’ (−6, 2) Bahan Ajar Interaktif Berbasis PMR