Answer:
1) given
2) given
3) definition of vertical angles
4) AAS
Step-by-step explanation:
<span>461.81 cm^3 .................................</span>
40s+2bs+200=number of books needed
if we want 12 books and 8 stalls
b=12
s=8
solve
40(8)+2(12)(8)+200=
320+192+200=
712
needs 712 books