Step-by-step explanation:
2πr is the formula is because the radius of a circle or a face of a circular object is used more often than the diameter. For example, the area of a circle is πr^2.
You can use the midpoint formulae as I have in the picture below
Answer:
Given the following two pair for values x 1 = 5, y 1 = 4 and x 2 = 1, y 2 = .
Calculate the Pythagorean triples associated with each pair
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x 1 = 5, y 1 = 4
Ans:: sqrt[5^2+4^2] = sqrt[41
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and x 2 = 1, y 2 = ?
Ans: r = sqrt[1^2 + ?^2]
Answer: This is either a trick question or real, but round it to the nearest thousanth I guess.