An exterior angle of a triangle is 180 degrees is never true. The simple reason behind this logic is that 180 degrees means a straight line and it is not possible for a straight line to create an exterior angle of a triangle. I hope that this answer will come to your help.
To find the correct option we need to calculate each of the given options.
Option (1):

Option (2):

Option (3):

option (4)
So, the correct answer is option (2)
4 thousand 7 hundred is 4,700
Perpendicular has the reciprocal slope and u have to put the point given into point slope.
y-3=9/2(x-4)
(The slope of the original equation was -2/9)