A student measures the volume of a rubber stopper and finds that it is 36ml. The teacher also measures the stopper and obtains a value of 40 ml. Other students
measure the stopper and it is decided to use 38 ml as the standard value for the
volume of the stopper. What was the student's percentage error? The teachers
error?

the answer should be 5 I guess

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

idk

step-by-step explanation: