I think Rachel need to paint 19 meters.
We need to find the L x W, L x H, and W x H.
It appears to be a rectangular prism.
L x W = 2.5 x 1 = 2.5
L x H = 2.5 x 2 = 5
W x H = 1 x 2 = 2
2.5
5
+2
____
9.5 x 2 because the figure has 6 sides not 3 so the answer is :
9.5 x 2 = 19 meters
P.S. You just had to find the surface area of the rectangular prism ;)
