Answer :
I was Thinking it out on my art pad
A=(1/2)
bh A=(1/2)*10*12
A=5*12=60 sq cm
4*60=240 sq cm
A=s*s A=10*10=100 sq cm
240+100=340 sq cm
so A
A=(1/2)
bh A=(1/2)*10*12
A=5*12=60 sq cm
4*60=240 sq cm
A=s*s A=10*10=100 sq cm
240+100=340 sq cm
so A
