Answer:
the awnser is -1
Step-by-step explanation:
4+(-3)=1
1+-2=-1
What exactly are you asking for....?
40×4×4=640
b=20 h=4
using formula:
1/2×base×height
1/2×20×4=40
its says scale by factor 4:
b=80 h=16
using formula:
1/2×base×height
1/2×80×16=640
answer------>>>>640cm^2
Answer:
don't know the anaswer
Step-by-step explanation:
thanks for points