Sove for x. Can you help me with this? Step by step please so I can understand :)

x=8

Step-by-step explanation:

The side G-F is the same side as side Q-R so 2 times 8 is 16

and 16 - 4 is 12

so x=8

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

can i see the following ?

step-by-step explanation: