tolong dibantu yy teman

Lebar = y → 8
Panjang = y + 7 → 8 + 7 = 15

Keliling = 2p + 2l
46 = 2 (y + 7) + 2y
46 = 2y + 14 + 27
46 = 4y + 14
46 - 14 = 4y
32 = 4y
y = 32/4
y = 8

Jd, luas = p × l = 15 × 8 = 120 cm (B)