MathDB
Equal Median and Side

Source:

January 2, 2009
geometryparallelogramtrigonometry

Problem Statement

In ABC \triangle{ABC}, we have AB\equal{}1 and AC\equal{}2. Side BC BC and the median from A A to BC BC have the same length. What is BC BC? (A)\ \frac{1\plus{}\sqrt2}{2} \qquad (B)\ \frac{1\plus{}\sqrt3}{2} \qquad (C)\ \sqrt2 \qquad (D)\ \frac{3}{2} \qquad (E)\ \sqrt3