question_answer 1)

Find the area of the triangle with vertices at the point given is each of the following : (i) (1, 0), (6, 0), (4, 3) (ii)(2, 7), (1, 1), (10, 8) (iii) (–2, –3), (3, 2), (–1, –8).  

Answer:

(i) The area of a triangle having vertices (1, 0), (6, 0) and (4, 3) is given by                         = 7.5 sq. units.       (ii)   The area of a triangle having vertices (2, 7), (1, 1) and (10, 8) is given by                               (iii) The area of a triangle having vertices (?2, ?3) , (3, 2) and (?1, ?8) is given by                          units in magnitude.