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Omni-MATH / Let ABC be an isosceles triangle with AC=BC , let M be the midpoint of its side AC , and let Z be the line through C perpendicular to AB . The circle through the points B , C , and…

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problem

Let ABCABC be an isosceles triangle with AC=BCAC=BC , let MM be the midpoint of its side ACAC , and let ZZ be the line through CC perpendicular to ABAB . The circle through the points BB , CC , and MM intersects the line ZZ at the points CC and QQ . Find the radius of the circumcircle of the triangle ABCABC in terms of m=CQm = CQ .
Plain-text mathematical notation (without MathML)
Let ABC be an isosceles triangle with AC=BC , let M be the midpoint of its side AC , and let Z be the line through C perpendicular to AB . The circle through the points B , C , and M intersects the line Z at the points C and Q . Find the radius of the circumcircle of the triangle ABC in terms of m=CQ .
Original LaTeX notation
Let $ABC$ be an isosceles triangle with $AC=BC$ , let $M$ be the midpoint of its side $AC$ , and let $Z$ be the line through $C$ perpendicular to $AB$ . The circle through the points $B$ , $C$ , and $M$ intersects the line $Z$ at the points $C$ and $Q$ . Find the radius of the circumcircle of the triangle $ABC$ in terms of $m = CQ$ .

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