SOLUTION: Triangle ABC has vertices at A(3,0), B(9,-5) and C(7,-8). What is the perimeter of triangle ABC, rounded to the nearest whole number?
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Question 1027498: Triangle ABC has vertices at A(3,0), B(9,-5) and C(7,-8). What is the perimeter of triangle ABC, rounded to the nearest whole number?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Length AB
Distance between two points
x1 y1 x2 y2
3 0 9 -5
d=
d=
d=
d=
l(AB)= 7.81
l(BC)
Distance between two points
x1 y1 x2 y2
7 -8 9 -5
d=
d=
d=
d=
l(BC)= 3.61
l(CA)
x1 y1 x2 y2
7 -8 3 0
d=
d=
d=
d=
l(CA)= 8.94
Add up all three lengths
m.ananth@hotmail.ca
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