Answer:
║

[Corresponding Sides of similar triangles are proportional.]

I believe it’s 80 hope it helps
Answer:

Step-by-step explanation:
The golden ratio is a special number favored by the Greeks. Its ratio roughly equals 1.618. The ratio is formed by taking a line segment and dividing it into two parts labeled a and b. The golden ratio is formed when this proportion is true
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When you add a and b then divide by a, it will be the same as a divided by b. This will hold true only for specific lengths of a and b. This means you must divide the line segment in such a way that a and b meet this requirement.
Example:
If the line segment is 50 cm long. Split the segment into parts a and b where a = 30.9 and b = 19.1. Substitute the values into the proportion
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1.618 = 1.618
This is the golden ratio.
Answer:
red 21%
green 29%
black 17%
blue 33%
Step-by-step explanation:
total 5+7+4+8=24
red 5:24=0.21=21%
green 7:24=0.29=29%
black 4:24=0.16=17%
blue 8:24=0.33=33%