A, B, and C are three points on a circle. AB = AC =7√2 cm and ㄥBAC = 90, then the radius is equal to?
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Step-by-step explanation:
1)from the following information the triangle lies on the diameter of circle having ends BC (base) by using pythagoreas theorem BC^2= 2×(7root2)^2
BC^2=2×49×2
BC=2×7
BC=14cm=diameter so radius=7cm
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