The base of a triangular pyramid is a triangle with corners at #(1 ,2 )#, #(3 ,6 )#, and #(8 ,5 )#. If the pyramid has a height of #5 #, what is the pyramid's volume?
55 cu unit
We know the area of a triangle whose vertices are A(x1,y1), B(x2,y2) and C(x3,y3) is
area cannot be negative. so area is 11 sq unit.
Now volume of Pyramid = area of triangle * height cu unit
= 11 * 5 = 55 cu unit