The circumradius of a triangle is 3.5 cm. Then the radius of the nine-point circle is
A
7 cm
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B
10.5 cm
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C
1.75 cm
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D
3 cm
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Solution
The correct option is D 1.75 cm The radius of a nine -point circle is equal to half of the circumradius of the triangle. Hence, the correct answer is C.