Answer:
10
Step-by-step explanation:
12-6+4
I believe the phi ratio^2 = 1 + phi ratio
phi ratio = 1.6180339
phi ratio^2 = 2.6180339
They are different the fraction 3/5 is 0.6 in decimal,and the fraction 6/15 is 0.4 in decimal.
Wish that helped.
Answer:
D. Yes, two sides are perpendicular, and the side lengths fit the
Pythagorean theorem.