The vertices of a triangle ABC are A(−6,3),B(−3,5)&C(4,−2) . If the co-ordinate of P are (x,y) . How to prove that PBCABC=x+y−25 ?
1 Answer
Mar 31, 2018
Explanation:
D is the foot of the perpendicular from P to BC
E is the foot of the perpendicular from A to BC
Slope of the straight line passing through
Intercept of the straight line passing through
Equation of the straight line passing through
Rearranging
Expressing in the standard form,