tolong dijawab ya, soal mat

Kelas 8 Matematika
Bab Kesebangunan

p = 60 cm
l = 40 cm
s = 5 cm

Lebar karton bagian bawah
= (2 . p/l - 1) . s
= (2 . 60/40 - 1) . 5
= (120/40 - 1) . 5
= (3 - 1) . 5
= 2 . 5
= 10 cm

✩✩ D ✩✩