Question

If the area of the triangle with vertices (x,3),(4,4)and(3,5) is 4 square unit, find x​

Answer 1

Step-by-step explanation:

Ar (∆ABC) = 4

⇒ ½[x(4 – 5) + 4(5 – 3) + 3(3 – 4)] = 4

⇒ (–x + 5) = 8

⇒ x = –3