Answer:
Step-by-step explanation:
Family.
A = 2lw + 2lh + 2hw
A = 2(12)(3) + 2(12)(5) + 2(5)(3)
A = 72 + 120 + 30
A = 222 cm squared
Hope this helps!! :)
Answer:

I don't really remember this very well, because it confusing me
Use the Pythagorean therm , you know the a^2+b^2=c^2
(-2)2+3= -1 hope this helps you