Question

Tolong jawab pakai cara​

Answer 1

Ukuran foto :
pf = 32 cm
lf = 40 cm

ukuran karton :
pk = 32 + 4 + 4 = 40 cm
lk = .....

pf / pk = lf / lk
32 / 40 = 40 / lk
32 lk = 40 × 40
32 lk = 1600
lk = 1600 ÷ 32 = 50 cm

Luas karton yang tidak tertutup foto
= (pk × lk) - (pf × lf)
= (40 × 50) - (32 × 40)
= 2.000 - 1.280
= 720 cm².

Answer 2

Semoga membantu ya dekkk