Answer:
408
Step-by-step explanation:
4 cm square
Area = s^2
Area = 4^2 = 16
I don't think you should be counting where the yellow and blue merge.
Yellow Top
Area = L*W
Area = 15*6 = 90
Yellow bottom = 90
Yellow Front
area = L*W
Area = 15*4 =60
Area yellow Back =60
Area 2 triangles
Area 1 triangle = 1/2*b*h
b = 3
h = 4
Area 1 triangle = 1/2*4*3 6
Area 2nd triangle = 6
Slanted part of triangle
Area = 6 * 5 30
Bottome Triangle
Area = L * W
L = 6
w = 3
Area = 6 *3 18
Total 426
