Respuesta :

PetrovaDoppleganger

Answer:

12 is the complete length and 10 is the number of sides

12x10= 120

rijarafiquee

Answer:

3.     P = 48 units   A = 116 units²

Step-by-step explanation:

A = 12 x 12

= 144

Now we can subtract the missing areas. 4 x 4 = 16 and 6 x 2 = 12.

144 - 16 - 12

= 116 units²

P = 12 + 12 + 12 + 12

= 48 units