Question

.If the triangle whose vertices are A(4 ,3) B(6, -2) and C(k ,-3) is right-angled at A then : k=

Answer 1

Step-by-step explanation:

slope of AB=-2-3/6-4=-5/2

slope of AC=-3-3/K-4=6/4-K

(-5/2)×(6/(4-k))=-1

(5×3)/4-k=1

15=4-k

k=-11