Please provide the steps

Answer:
Step-by-step explanation:
a of triangle=1/2 ×b×perpendicular height
a= 1/2×2×3
a=3 in
3×4=12 in ( times by 4 because their is 2 is isosceles triangles which are both half make 4 right angled triangles)
10×4=40
40×3=120(times by 3 because there is 3 rectangles
120 in + 12 in=132 [tex]in{2}[/tex]