a triangle has vertices g(2,3) h(0,8) and i(-3,1 ) whihc statment is true

Question

a.angle g is a right angle 

b.angle h is a right angle 

c angle  i is a right angle 

d none of the angles is right angle

Answer 1

the line connecting point i and point g has slope (3-1)/(2-[-3])=2/5

the line connecting point g and point h has slope (8-3)/(0-2)=5/-2

the two slopes are negative reciprocals of each other so therefore the two lines are perpendicular to each other at point g

two lines that are perpendicular to each other form a right angle

angle g is a right angle, choice a.