we gots 3 rectangles and 2 triangles
rectange area=length tiemsw dith
triangle=1/2 times base times h eight
rectangle left is
4 by 12 or 48 square inche
rectangle right is 9 by 4 or 36 squaer inches
back one is 15 by 4 or 60 square inches
triangles
there are 2 of them
12 by 9
2 times 1/2 times 12 times 9=108
add them all up
108+60+48+36=252 square inches