Question

How do i find the surface area

Answer 1

You break it up into smaller pieces! (48)

Explanation:

You can either take the area of the full rectangle, or of the square + 2 rectangles using length*width

3*12 = 36

You are left with the two triangles which area you can get using 1/2*width*height since they are right triangles.

1/2*4*3 = 6

36 + 12 = 48