Answer:
135 inches
Step-by-step explanation:
A scale factor is the size of the object on paper.
So to get the actual size we must multiply by the reciprocal of the scale factor.
Dividing by 1/20 is the same as multiplying by 20.
Since the scale is 6.75 (I converted 3/4 to 0.75), we must multiply by 20 to get our original height.
So 6.75 * 20 = 135 inches
