Problema Solution
find the area of a triangle wit vertices at ( 3, -1, 2 ) ( 1,-1,-3) and ( 4,-3,-1)
Answer provided by our tutors
x1=3 , y1= -1 , z1 = 2
x2=1 , y2= -1 , z2= -3
x3=4, y3= -3 , z3 = -1
We knoe the formula for calculating area of triabgle, as
area= determenent((x1,y1,z1),(x2,y2,z2),(x3,y3,z3))
area= 3(1-9)+1(-1+12)+2(-3+4)
area- 11