Level Stack

What is a good math problem for a stack of cannonballs?
I need the question for a “math path” about Downtown Charleston, SC. We are doing the battery, and I just need to construct an equation about a stack of cannonballs that has 55 in the stack. The problem would need to be an Algebra-1 level problem. Any help?? Thanks!!
Ask ‘If they (the cannonballs) were all the same size, and stacked as a square pyramid on the parade ground, what was the total height of the pyramid as a function of the radius of the cannonballs?’
Stack 1v1v1 [GE64][Flag Tag]
|
|
Levels of Discovery Stack A Buddies Storage Unit $89.95 |
|
|
Level Of Discovery Stack A Buddies Storage Unit Toy Box $89.95 |
|
|
Levels of Discovery Stack A Buddies Storage Unit $89.95 |
|
|
LEVEL OF DISCOVERY STACK A BUDDIE STORAGE UNIT KIDS NIB $99.95 |
|
|
5-Level Status Indicator Signaling Light Stack Tree + A $295.00 |
|
|
Levels of Discovery Stack a Buddies $99.95 |
|
|
Levels of Discovery Stack a Buddies $99.95 |
|
|
3 level japan porcelain trinkets jewelry box stack case $69.99 |
|
|
Level Of Discovery Stack A Buddies Storage Unit Toy Box $89.95 |