Question 23
In the diagram, $ABC$ is right-angled with $AB=15$ and $BC=8$. Point $D$ lies on $AB$ with $DB=6$. Point $E$ lies on the hypotenuse $AC$ and $DE\perp AC$. Find $BE$, rounded to the nearest integer.
Answer format: enter the integer answer without units. Leading zeros are optional; the original paper uses four-digit boxes.
Answer format: enter the integer answer without units. Leading zeros are optional; the original paper uses four-digit boxes.