Question

Someone help me with this

Answer 1

• Side of base=10km

Perimeter

$\\ \qquad\quad\sf{:}\twoheadrightarrow (side)4$

$\\ \qquad\quad\sf{:}\twoheadrightarrow 4(10)$

$\\ \qquad\quad\sf{:}\twoheadrightarrow 40km$

• Height=9.4km

$\\ \qquad\quad\sf{:}\twoheadrightarrow Surface\:Area=Perimeter\times Height$

$\\ \qquad\quad\sf{:}\twoheadrightarrow Surface\:Area=40(9.4)$

$\\ \qquad\quad\sf{:}\twoheadrightarrow Surace\:Area=384m^2$