Respuesta :

suspho

Answer:

Step-by-step explanation:

big rectangle

3 * 4 = 12 mm²

little rectangle

1 * 6 = 6 mm²

triangle

[(6-3) * 4] : 2 = 6 mm²

sum the results

12 + 6 + 6 = 24mm²
24mm ^2 pls make me brainliest as i typed it first in the comments