Answer:
51 in²
Step-by-step explanation:
formula of a triangle: [tex]\frac{1}{2}[/tex]bh
the base is 3 and the height is 7
1/2(3)(7)
1/2(21)=
10.5
Since there are 4 of these same triangles, we multiply by 4.
10.5 · 4 = 42 in²
formula of a square: bh
base is 3 and height is 3
(3)(3) =
9 in²
add them together and you get your answer of 51 in²
