The surface area of the actual ramp is 16.8 ft²
What is an area?
An area is the amount of space occupied by the two dimensional shape or object.
The height of the actual ramp = 1.2 feet and the height of the model = 6 cm
Scale factor = 1.2 feet / 6 cm = 0.2 ft/cm
Actual base = 16 cm * 0.2 ft/cm = 3.2 ft
9 cm = 9 cm * 0.2 ft/cm = 1.8 ft, 10 cm = 10 cm * 0.2 ft/cm = 2 ft,
Surface area of actual ramp = 2(0.5 * 3.2 ft * 1.2 ft) + 2(2 ft * 1.8 ft) + (1.8 ft * 3.2 ft) = 16.8 ft²
The surface area of the actual ramp is 16.8 ft²
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