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If BO is the median of △ABC and AC = 10 cm. Find the length of OA.

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8 cm

5 cm

6 cm

9 cm

answer is B.

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Detailed Solution

A median of a triangle is a line segment that joins a vertex to the mid-point of the side that is opposite to that vertex.

It is given that BO is the median of the triangle ABC.

So, OA = OC = $\frac{1}{2}$ AC

⇒ OA = $\frac{1}{2} \times$ 10 = 5 cm

Therefore, the length of OA is 5 cm.

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