Answer:

Step-by-step explanation:
Calculate the length using the distance formula
• d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = A(0, 6) and (x₂, y₂ ) = B(7, 0)
AB =
= 
=
= 
55+(x+25)=180
55+x+25=180
25+55+x=180
80+x=180
x=180-80
x=100
20/49.99
≈ 40%
Because you're taking 20 out of 49.99.
Answer:
12.57
Step-by-step explanation:
I used C=2πr for the formula
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