Question

"A scale drawing has a scale of 3 in: 10 ft. Find the length on the drawing for each actual length.

a 4 ft
b 40 ft
c 5 ft
d 6. 6 ft

Answer 1

To find the length on the drawing for each actual length, use the scale of 3 in: 10 ft.

Step-by-step explanation:

To find the length on the drawing for each actual length, we need to use the given scale of 3 in: 10 ft. This means that for every 3 inches on the drawing, it represents 10 feet in actual length.

For a 4 ft actual length, we can set up a proportion:

3 in / 10 ft = x in / 4 ft

Cross multiplying, we get:

10 ft * x in = 3 in * 4 ft

x = (3 in * 4 ft) / 10 ft

x = 12 in / 10 ft

x = 1.2 in

Therefore, a 4 ft actual length would be represented by 1.2 inches on the drawing.