Answer:
3
Step-by-step explanation:
Since the shapes are similar this means they are equal.
If the ratio is 2:1 that would mean divide each number by 2.
6/2 reduced equals 3/1 = 3
S+ST = RT
3x+1 + 2x-2 = 64
5x = 65
x = 13
208
= 128 + 64 + 16
= 1 * 2⁷ + 1 * 2⁶ + 1 * 2⁴
= 11010000. (base 2)