Question

Area of triangle with vertices (1,1) (5,3) (3,5)

Answer 1

Answer:

6 square units

Step-by-step explanation:

Area of triangle = 1/2 (x1 (y2-y3) + x2(y3-y1) + x3(y1-y2))

Vertices given = (1,1) (5,3) (3,5)

Area = 1/2 ((1)(3-5) + (5)(5-1) + (3)(1-3))

= 1/2 ((1)(-2) + (5)(4) + (3)(-2))

=1/2 ((-2) + 20 -6)

=1/2 (12)

= 6 square units