Question

Brooke paints the outsides of the square walls and triangular ceilings of her treehouse. What is the area?

Answer 1

Answer:

The answer is "$216\ ft^2$"

Step-by-step explanation:

Please find the graph file in the attachment.

The area of its tree house's outsides of the square walls and triangular ceilings is equivalent to four squares with four triangles,

$\to A=4[(6)^2+\frac{1}{2} (6)(6)]$

       $=4[36+\frac{1}{2} (36)]\\\\=4[36+18]\\\\=4[ 54]\\\\=216\ ft^2$