Cleisthenes is known as the "the father of Athenian democracy"
<span>When writing an essay like this, it is important to make connections between the historical issues at hand and the current events that are shaped by these issues. </span>
Answer:
The surface area increases by 4 times.
Explanation:
Surface area of a square pyramid:

Where:
A = surface area
b = base edge
h = height
Doubling the values gives us a b = 4 and h = 6.
Putting those into the equation gives us:




And the decimal approximation:

Which roughly equals to 4 times the first surface area.