In △BCD, BP=15 cm. What the length of BX⎯⎯⎯⎯⎯?

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cm

A triangle B C D. Side B D is the base. P, Q, and R are the midpoints of sides C D, B D, and C B respectively. Midpoints of each side connect to the opposite vertex. B P is the median of line segment C D. C Q is the median of line segment B D. D R is the median of line segment B C. Medians intersect at a point labeled X. Single tick marks are on the line segments C R and R B. Double tick marks are on the line segments C P and P D. Triple tick marks are on the line segments B Q and Q D.