Answer:
174 inches squared
Step-by-step explanation:
First, we have to remember what the area of a triangle is:
[tex]\frac{base*height}{2}[/tex]
Since there are 4 of the same triangle, multiply the area of one triangle by 4:
[tex]\frac{10*8.7}{2}[/tex]
[tex]\frac{87}{2}[/tex]
[tex]43.5[/tex]
[tex]43.5(4)=174[/tex]
