(DC)^2=(BC)^2-(BD)^2=625-576=49
DC=7
(AD)^2=(AB)^2-(BD)^2=625-576=49
AD=7
AC=AD+DC=7+7=14
Sabc=AC*AB/2=24*14/2=168
S abc=1/2a*h
ad^2=625-576=49.AD=7
DC^2=625-576=49.DC=7
AC=7+7=14
s=1/2A*H=1/2 14*24=168
