Circles and the pythagorean theorem

CONCEPTS

Tips

• The distance between the center and any point on the circle is equal to the radius. Always find the radius and / or diameter whenever there is a circle problem.

PRACTICE PROBLEMS

Question 1 Given AC is 15 in long and BE is 10 in long, what is the length of line AD?

-- Answer -- 14.1

AB = AE = AC = 15, 15² = 5² +AC², AD = 14.1

ACT PRACTICE PROBLEMS

1/1

71c

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