Surface Area From Nets Worksheet. Web therefore, the area of all 4 4 triangles is 4\times20=80\text { cm}^2 4 ×20 = 80 cm2. Draw the square base, draw a triangle on each side and label the dimensions.
Draw the square base, draw a triangle on each side and label the dimensions. Next we need to add the area of the square base to the total area. Surface area of solids using nets sheet 1 2.