Respuesta :

Answer:

The answer is 35cm

Step-by-step explanation:

3x5=15

2x10=20

15+20=35

:Answer

1. 35 cm

2. 90 cm

Step-by-step explanation:


3x5=15



2x10=20



15+20=35

________________

3 x 6 = 18


8 x 9 = 72


18 + 72 = 90