1 soal doangnt ; no copas , ngsl report​

Jawaban:

a = 5 cm

Penjelasan dengan langkah-langkah:

p karton : 50 cm

l karton : 40 cm

p foto = 50 cm – (5cm + 5 cm)

= 50 cm – 10 cm

= 40 cm

l foto = a

p foto : p karton = l foto : l karton

40 cm : 50 cm = l foto : 40 cm

40/50 × 40 cm = l foto

32 cm = l foto

a = l karton – (l foto + 3 cm)

a = 40 cm – (32 cm + 3 cm)

a = 40 cm – 35 cm

a = 5 cm