Question

Line B is 55 cm long. It is an enlargement of Line A which is 5 cm long. What is the scale factor of the enlargement?​

Answer 1

11

Explanation:

Line B is an enlargement of Line A, which is 5 cm long. Let's say that the scale factor is "k". Then, when we multiply k by the length of Line A, we should get the length of Line B:

(Line A length) * k = (Line B length)

5 * k = 55

k = 55/5 = 11

Thus, the scale factor is 11.

Hope this helps!

Answer 2

11

Explanation:

Length of enlarged line is: 55 cm

Length of the original line: 5 cm

Let the scale factor be t

Then,

5t = 55

t = 55/5

t = 11