Question

Please solve this fast fast

Answer 1

here coordinates are
(-1,0),(4,0),((1,3)
area =1/2 (-1(0-3) +4(3-0) +1(0))
=1/2 (-1(-3)+4(3)+0)
=1/2(3+12)
=1/2(15)
=15/2
=7.5 is answer obtained

Answer 2

Height=3

base=6

so,area=1/2*base*height=1/2*6*3=9unit square