Answer:
75 square inches
Explanation:
Area of a Triangle = 1/2 × Base × Height
From the above question:
Base = 30 Inches
Height = 5 inches
Hence:
Area = 1/2 × 30 in × 5 in
Area = 75 square inches
Therefore, the area of one of the triangular pieces of wood that she needs to build the ramp is 75 square inches