Which of the following angles is coterminal to 30 degrees? A 120 degrees
B 60 degrees
C 330 degrees
D 390 degrees

390 degrees

Step-by-step explanation:

30 + 360 = 390

step-by-step explanation:

the shape,the size and the distance

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