Question 23
In the diagram, $\angle ABC=\angle ADB=90^\circ$, $AB=BC$, $BD=4$ cm and $AD=6$ cm. Find the area, in cm², of triangle $BDC$.
Input: enter the requested whole-number answer without units. Leading zeroes from the paper grid may be omitted.
Input: enter the requested whole-number answer without units. Leading zeroes from the paper grid may be omitted.