Answer:
<h2>3,600 m²</h2>
Step-by-step explanation:
The formula of a surface area of a sphere:

<em>R</em><em> - radius</em>
<em />
We have <em>R = 30m</em>.
Substitute:

Differentiation is part of calculus
differentiation basically allows you to find the gradient of tangent
The longest two sides will be 4 each and the shortest two sides will be 2 each
One is significantly fatter than the other and has more friction