Asked by Cassie
A triangle has a perimeter of exactly 24 units. Which of the following could be the vertices of the triangle?
A.) (-1,3),(2,-1),(-1,-1)
B.) (6,0),(6,7)(0,7)
C.) (-1,-1),(-6,-13),(-9,-9)
D.) (-3,-4),(3,-4),(3,4)
I am not sure on this one any help would be great
A.) (-1,3),(2,-1),(-1,-1)
B.) (6,0),(6,7)(0,7)
C.) (-1,-1),(-6,-13),(-9,-9)
D.) (-3,-4),(3,-4),(3,4)
I am not sure on this one any help would be great
Answers
Answered by
Cassie
If anyone has any tips please let me know
Answered by
Steve
If we call the vertices A,B,C and the opposite sides a,b,c then we have
(A): a=3, b=4, c=5
(B): a=6, b=√85 stop right there
(C): a=13, b=10√2 stop right there
(D): a=8, b=10, c=6
we have a winner!
(A): a=3, b=4, c=5
(B): a=6, b=√85 stop right there
(C): a=13, b=10√2 stop right there
(D): a=8, b=10, c=6
we have a winner!
Answered by
Cassie
D - thank you so much - that's the one I marked but needed to be sure.
Answered by
netts
Can someone explain to me how you got those values from the (x,y) values ???? help? I want to learn how to do it for myself and my teacher didn't include this part in the lesson. :(((