Find the area of the base B of the solid.
7 in
Volume= 84 π in. 2

Answer:
12
Step-by-step explanation:
v=[tex]\pi[/tex]r²h
84[tex]\pi[/tex]=
84[tex]\pi[/tex]÷7
12=r²
area of a circle is [tex]\pi[/tex]r²
so B is 12[tex]\pi[/tex]in²