Unattributed TMUA Mock Set B Paper 1 · Question 10

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Unattributed TMUA Mock Set B Paper 1 · Q10

Paper 1TrigonometryGeometry

There is a rectangle $ABCD$ . We fold the lower right corner of the rectangular paper $ABCD$ so that the vertex of the corner falls on the side $AD$ of the rectangle and is denoted as $G$ . If $\sin\theta=\frac14$ , the length of $l$ is

\frac{64}{5}

\frac{32}{5}

\frac{16}{5}

5

13

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