Question 23
In the diagram, $ABC$ is right-angled at $C$. Points $D,E$ lie on $BC,AC$ with $BD:DC=2:3$, $AE:EC=3:2$, $AD=4$ and $BE=\sqrt{10}$. Find $57\times AB^2$.
Answer format: enter one whole number without units; leading zeros are optional. The source answer sheet uses four digits (for example, 7 is shaded as 0007).
Answer format: enter one whole number without units; leading zeros are optional. The source answer sheet uses four digits (for example, 7 is shaded as 0007).