The height of a door on a scale model is 0.4 in. The scale of the model is 1 in. = 20 ft.
What is the actual height of the door?
Responses
A 6.4 ft.6.4 ft.
B 8 ft.8 ft.
C 6.2 ft.6.2 ft.
D 6 ft.
The actual height can be found by multiplying the height on the model (0.4 in) by the scale factor (20 ft/in):
0.4 in x 20 ft/in = 8 ft.
Therefore, the actual height of the door is option B, 8 ft.
To find the actual height of the door, we need to multiply the scale model height by the scale factor.
The scale factor is 1 in. = 20 ft.
Given that the height of the door on the scale model is 0.4 in, we can use the scale factor to calculate the actual height.
Actual height = Scale model height * Scale factor
Actual height = 0.4 in * 20 ft/in
Actual height = 8 ft
Therefore, the actual height of the door is 8 ft.
The answer is B) 8 ft.