Answer:
24 cm²
Explanation:
start by calculating the areas separately :
first
for the triangle= (3x4)/2 = 6 cm²
for the rectangle we will first calculate it's length (L)
L= 8-4=4 cm
the area will be = 4x3 = 12 cm²
for the smaller rectangle we will have as below:
1.5x4=6 cm²
the surface area of the figure is the sum of the areas calculated above:
Area of the figure= 6+12+6= 24 cm²