Answer:
[tex]1080 \ in^2[/tex]
Step-by-step explanation:
-The cumulative area of the six is equivalent to the sum of their individual areas.
-Area of a triangle is given by:
[tex]A=\frac{1}{2}bh\\\\b-base \ length\\h-\perp Height[/tex]
We substitute given values in the equation and multiply by the number of pennants:
[tex]A=\frac{1}{2}bh\times 6\\\\=\frac{1}{2}\times 12\times 30\times 6\\\\=1080\ in^2[/tex]
Hence, the total area needed is [tex]1080 \ in^2[/tex]
