Question

find the area of triangle whose vertices are p(3/2 ,1) q(4, 2) r(4, -1/2).
ans should be 25/8 sq unit​

Answer 1

First find its coordinates by

x1 + x2 ÷2......

Then find sub perimeter by

s=( a+b+c)÷2

Then put the values in herons formula...

area of tri = {s(s-a)(s-b)(s-c)}

You will get your answer....

It's too difficult to type otherwise I would have solve it.....

HOPE IT WOULD HELP YOU KID.....