Question

What is the area of triangle formedbby the points of O(0, 0) A(-3, 0) and B (5, 0)

Answer 1

use distance formula for getting the lengths of the three sides
√(x-x1)^2+(y-y1)^2
find the altitude.... drop a perpendicular to the base suppose D (h,k) n then by midpoint formula get the coordinates of D n then again by distance formula get the altitude n then use area ( triangle)

Answer 2

Zero is the ans check the photo